Wow your videos have evolved.....IMMENSELY!!

4-10 doesn’t mean “4 to 10” for your gear ratio, it means your ratio is 4.10 to 1. (Your driveshaft will turn 4.10 times for every revolution of a wheel).

@TriangleSquare52

5 жыл бұрын

lmao

@b1blazin13

4 жыл бұрын

Pretty sure he knows and just a figure of speech. Maybe the manufacturer should write it 4.10 then though to resolve any confusion

@jodyjr00

2 жыл бұрын

4:10 to Yuma

@jonathanhendrix2925

Жыл бұрын

@@b1blazin13 you can see the decimal point under the rust lol

@santiagodavila1426

Жыл бұрын

🤣🤣😂😂🤦‍♂️🤦‍♂️

3 weeks, 2 rear ended and 8 hours into finishing up installing the second, your video came in hand!. Thank you for posting this info.

@kukovich00

2 жыл бұрын

(handy!!)

So I just learned the hard way.....I couldnt read the tags....so jacked up my jeep CJ5 with Dana 44....spun the wheels....tires went opposite directions. I ordered an auto locker, pulled the diff cover and lo an behld....I have a Trac Lok with worn clutches If the clutch pads are no good....a Trac Lokwill behave like its open. If you drive a Jeep.....look at the tag or open the diff BEFORE you buy any parts....the old spin trick isnt reliable every time

One of the best ways is to look at the tag because so many companies make different differentials and they react differently. This is specifically for Fords and Mazda but does work for other manufactures. It is only a reference tho. Check the tag on the differential to be sure!

It is def not a method to rely on but if you know a little about your car, you can use it to figure out what kind of diff you have. Also, thanks for the gear info. I dont know if you saw the annotations, but I corrected myself with that info. I misspoke when making the video.

Thank you

The video instructs us to jack the vehicle up, so that the wheels are off of the ground, and to place the vehicle transmission in "Neutral". As a professional mechanic, I just wanted to note that the transmission does not need to be in Neutral. An automatic transmission can be left in "Park", or a manual trans can be left "in gear". If the vehicle has an "Open Differential", the wheels will spin in opposite directions. Some locking units act like open diffs, until the engine applies torque.

Interesting. Thanks for the info!

Chris Fix this was VERY helpful! Your a life saver

Essentially. A LSD will spin one axle a small amount before locking them both into a posi style axle(That's the "limited" in limited slip). It makes for much better cornering. With a Posi you see a considerable amount of "wheel hop" during turns. I thought they were the same thing too until just recently when a Ford guy called me out when I said my mustang had posi lol.

Did you look for the tag on the diff? Sounds like it might be a limited slip diff or an electronically controlled diff.

Did you check the tag on the rear differential housing? Probably an open diff but you cant be sure until you check the tag.

Are there any situations on any cars out there that the tires might not spin when the car is in drive or park? Not everyone has this type of diff and I cannot tell you that other diffs will react the same way, but isolating the transmission is just one way to prevent someone who tries this with problems... ya know what I mean

thanks for the info!!!

@hectorcorona8071

3 жыл бұрын

You’re welcome

@fmob1234567

3 жыл бұрын

Lol

What a transformation your videos have went through

thanks for the video!! i. actually planning to change the fluid on my 1979 z28 and i wasnt sure what type of diff it had..very helpful video thanks alot.

I have everything I need to change some rear axle shafts and change the diff fluid and I kept wondering whether or not is it a slip or not. Thank God for this video, thank you Chris!

@chrisfix

3 жыл бұрын

Glad the video was helpful!

@Chris-sg1by

3 жыл бұрын

My brother introduced me to your videos years back and when I got my hands on my dream car el camino I just had to go back to your videos. All of your vids are so informative and helpful. Let alone plain entertaining. Keep up the good work Chris and hear from you again on your next video!

I know this is an old video but thanks! Found just what I needed to know.

You will get different results. I am not completely sure what would happen because there are so many types of diffs and each one reacts differently. If both tires are suspended and the truck is in drive, you might not have any movement or one tire might move. If both end up moving and you put some resistance on one tire, the other tire might stop moving. It all depends. Def be careful because if anything happens, such as leaving 4x4 on, the car falls off the jack stands, etc, you could get hurt!

@GrandNash-bk2kq

Жыл бұрын

What does it mean if I can do this with my car in park?

You must have a little more wheel speed before the spider/side gear interface will create enough force to close the clutch packs. Until then, it will APPEAR as if it's an open diff.

@ChrisFix Boy have you grown your channel since this one came out. A mix of shot quality and your signature professional yet excited narrations have kept me a well pleased subscriber. But it is interesting to see just how far you have come in the last eight three quarter years. Not that this was bad; about average for the market actually; but that you have risen above what is expected on YT and have built a sturdy brand, of which I recommend to anyone I know who is working on a vehicle for any reason.

Very informative answered all my questions. Thanks

so if it doesnt lock then it wont spin the tires? What would happen in each scenario?

ChrisFix Thanks for answering my question about the G80, I really enjoy your videos. :)

@chrisfix

9 жыл бұрын

No problem! Glad the videos are helpful!

From watching Engineering Explain's video on limited slip, there needs to be a certain amount of rotational speed before some cams swing out to engage the limited slip. Therefore, this test wouldn't identify it.

@glennmanchester1568

7 жыл бұрын

DonTruman your right but like the eaton. g80 it's not a strong locking differential and is prone to breakge under sometimes even normal use never mind any abuse

@waynekellogg4949

2 жыл бұрын

This does not tell you if you have a limited slip. you have to spin the tire at a higher revolution then just rotating slowly around. a limited slip will grab when the tire spins at a specific speed or torque to drive the other tire forward

Haha yea man! I love it but it sucks on the highway. I run at 2500rpms at 65mph...

Correct. Unless you have a locker, only one wheel will spin (the one without grip too lol).

@ApartmentKing66

3 жыл бұрын

Which I think is counterproductive.

is it in the owners manual. They typically say what diff you have. Check the type of fluid you have to put in.

@JOHNWAYNE1920

4 жыл бұрын

No, owners manuals are all the same regardless of what options you have.

@bryanfraser1645

4 жыл бұрын

I have an 04 interceptor. All the tags and stickers point to limited slip, but it acts like it's open. I'm not sure if the differential was swapped at some point or not. I don't want to open up my differential to replace the clutch packs if it turns out I have an open diff. Would the wheels still spin opposite of each other if the clutch packs are worn? Or would one just not turn? Thank you.

Wow Chris, this video is gold ❤

I mention that in the video @ 0:27 lol... Its not always the best way because the differential could be changed and not every car has a tag.

Handy and helpful. Thank you!

Hi Chris, why I'm not wondering it's you answering my question again, like so many times. Thanks for helping me out again:-) Greetings from Germany.

Thank you so much! Exactly what I needed to know!

Nice tutorial !!

So in my experience a limited slip differential (LSD), posi, or various lunchbox lockers require a certain amount of rotational speed before the clutch packs engage. You can lift it and spin it as you are you just need to do it with some power. It is dependent onnthe type of clutch pack whether you need a friction modifier. You may also have a limited slip diff, but either due to not having the friction modifier added or the clutch packs which are washers coated in a friction material like breaks are worn down to the point they will not lock the rear reliably, & this is a very common issue. Good try, but there is a bit more to how these work & how we can check for them.

ChrisFix keep making videos, I enjoyed a few of them so far. This one was helpful. Subscribed.

@chrisfix

9 жыл бұрын

johnathan wood Thanks a lot bud! Welcome aboard!

@joeotz8144

6 жыл бұрын

What if my truck is 4x4 and has no tag in the differential does it still work?

Great job learned a lot today

Thank you. Great video

There's the professional way, this video. And then there's the fun way, burnouts and launches.

I'm jealous of your differential ratio. I have the 3.73. I want the 4.10 for better acceleration. I have the 4.0L SOHC, so I could be having a lot more fun!

@chrisfix

10 жыл бұрын

tartredarrow Yea, I lucked out. I just wish it was a locking diff. I guess you cant have it all lol

Ok Chrisfix now I know how to determine a limited slip differential and non limited slip differential,very nice video tutorial Chrisfix,ur video tutorial helps me a lot because I am a automotive student,for me ur a very good mechanic instructor.I wish I will be ur mechanic assistant someday.😀

@chrisfix

4 жыл бұрын

Thanks a lot Gilbert!

@timfolman4632

3 жыл бұрын

Need to put a load on the opposite wheel all limited slips will do what he's showing hence the name limited slip

Thanks for video Bud

It's actually called a transaxle which is built into the transmission. FWD cars dont have room for a differential because the transmission and engine take up a lot of space...

What are you trying to figure out with a front wheel drive car? There typically isnt a differential. The drive shafts are connected directly to the transmission.

@satsumagt5284

4 ай бұрын

Sir, I know this comment is 11 years old, but… Did you just mean there’s no separate diff for FWD? Because there’s definitely one inside of the transaxle unit.

I have two 3 ton jacks. I just lifted the rear wheels both up and it spins in the opposite direction so it's not an LSD like you stated. Thanks!

Thanks, I will do this. See a guy post 3 rear dif from 67-69 Camaro.

brilliant Video

Old post but needed. Thanks Chris. My 95 f150 8.8 may have been swapped to LSD. I need to check the old fashioned way.

I seen that i wondered why now What is the difference as far as performing is any better than the other and why. Thanks for the video.

thanks, I was wondering why my rear wheels were goin in opposite directions when I hand turned them..

Searching up lsd rear axles and how they work... saw Chris fix vid and was like yep this is gonna be good

You do have a lot of very informative videos, I was just busting yur aggats

@chrisfix

10 жыл бұрын

Jesse Woody Thanks Jesse, I like when my viewers point stuff out like that. It makes the videos better!

Thanks ... good vid

I have seen one car that used a hydraulic valve, you would apply the foot break and turn the valve which would keep fluid pressure on all 4 wheels, but thats a custom. Some SUVs (I think it's land rover or range rover) have a drum just after the transfer case which is the e-brake.

If you have a posi rear, When jacked up with both wheels off the ground and you rotate one wheel and the other turns the same way, You have a posi rear.

@rudyyarbrough5122

2 жыл бұрын

Thank you for pointing this out. I knew it but the guy in the video does not say it. He only tells you that if your two wheels go in opposite directions then it is not a limited slip.

my 83 camaro had limited slip and the wheels turned opposite directions whilst in the air. i know it had limited slip because id leave 2 burnout marks

the faster way is just do a burnout, 2 tire marks means you have LSD

@chrisfix

9 жыл бұрын

revelationns haha, true that!

@denny9639

9 жыл бұрын

ChrisFix This is true, ask me how I know PS, a 4.0 V6, a 5 speed manual and a 3.55 Limited slip in a 93 Ranger burns rubber good, real good

@ericmaanders5554

9 жыл бұрын

Not true.. 2 skids doesnt mean you have lsd.. if everything is well balanced you will always leave 2 skids. And also rotating the tires while jacked up isnt a proof of a lsd.. because most diffs are viscous.. which dont work this way.

@denny9639

9 жыл бұрын

I checked the door sticker and the tag on the diff, its an LSD. Dont act like you know my truck

@ericmaanders5554

9 жыл бұрын

I dont.. but these tricks dont work out.. read closer.. i didnt say anything about u or your truck

always saving the day. now i can tell without opening the diff

thx man ,am Lucky we have a similar truck

Great visual. If I did not know what I have for some reason I would install fluids with friction modifier that way I am ok either way.

That's interesting... I am not sure why that is.... It sounds right that only one tire spins at a time on ice because you dont have a limited slip but I would think it should do the same in reverse...

thanks for this. i was buying a rear end conversion for my car and guy wasnt too sure if it was lsd or standard as the rear end he got in bunch of spare parts. turns out it was lsd after all :)

@chrisfix

8 жыл бұрын

+franciswhizzite Awesome! Glad the video was helpful!

Very helpful 🙏

@chrisfix

6 ай бұрын

Glad it was helpful!

That's a neat trick. I wonder if it works for eLSDs?

Do you know if you have a limited slip diff? Maybe it is broken or doesnt have the lsd additive? I am not sure, just throwing ideas out there...

@seanmarchiny

5 ай бұрын

Why have I never heard you have to add lsd additive to a lsd for it to work?

Onya bud now i dont have to do the google dance thanx mate 👍👍

That car will most likely have a limited slip diff... That means your other tire wont spin or could spin the same direction.. Sounds like it is working to me, but this test is only one of a few diagnostics to figure out your differential.

amazing how in all the comments people dont know the terminology. "Limited Slip" is the generic term. GM calls limited slip "Positraction"(posi) Chrysler calls it "Sure-Grip" Ford is "Trac-Lok" all are limited slip. Auburn makes the limited slip called the "Detroit Locker". As opposed to open differential or the always locked up, "Spool". and there are many other brand names for LS from all the others, Porsche, etc, and ways that they work too. I suggest y'all read the wikipedia page, just google limited slip.

@chrisfix

9 жыл бұрын

captmack007 Thanks for the info man!

9 жыл бұрын

I still call it limited and expect it that way. I don't use wikipedia anymore because they ***** about how they can't even run their own website and expect donations from every user.

9 жыл бұрын

i got 99 problems but the only one I worry is when flies go into my cup of coffee.

@labian5

6 жыл бұрын

captmack007 pontiac had safety trac

@krisdaan1406

6 жыл бұрын

Tyee Cambrón is done completely under volunteer work no one gets paid dedicated people that do constant research to make sure the facts are correct

I tried this with my car because I bought it second hand and the first owner didn't know what I was even talking about when I asked her if it had the limited slip or not. When I spun one wheel the other one didn't move. The LSD option was a Torsen for my car. I'm pretty sure that's what I have.

You dont want to add limited slip additive to a regular diff. It can cause damage.

@151bradhatt

4 жыл бұрын

If i add limited slip additive will it turn my rear end into a limited slip?

@RoastFlea61

8 ай бұрын

@@151bradhattno, it will probably destroy your rear end. Limit slip differentials are a different mechanism internally.

@151bradhatt

8 ай бұрын

@@RoastFlea61 it was a joke. I forgot I said this 3 years ago lol

torsen LSD's spin opposite

@MrComputereviews

7 жыл бұрын

Caleb DesJardins because Torsten lsd require both wheels on the ground to work they are a 1 way limited slip diff

@calebdesjardins9562

7 жыл бұрын

Yeah they just need to have a load on them, I've seen people test them by pulling the handbrake halfway. I'm just saying this isnt a way to know for sure.

@MrComputereviews

7 жыл бұрын

Caleb DesJardins any good driver can tell

@calebdesjardins9562

7 жыл бұрын

of course... again, I'm just saying this method isnt a way to know for sure.

@TylerN945

7 жыл бұрын

I realized, because​ I know for sure that my FRS has limited slip differential but the wheels turn the opposite way when off the ground so I was a little confused, but then I realized that torsen LSD are different

I just had an Eaton posi unit installed in my Chevy 10 bolt rear end. With the vehicle up on jack stands, the rear wheels will spin in opposite directions with the trans in neutral. I'm not a professional mechanic so I had an old hot rod shop install it. While the rear was on the jack stands with the front tires chocked, I started the engine and put the vehicle in "Drive". Both rear wheels started spinning forward normally. I then carefully and slightly slipped a piece of wood under one spinning wheel to slow it down and the other rear wheel picked up speed. I don't know if this is a good test. I did Google the Eaton posi website and it did show that this might be a good test when one wheel has more torque than the other. I'm driving the vehicle carefully for now to let everything seat in. Forgot to add that I had a 67 Mustang with a 9 inch rear end with limited slip differential. Both wheels did turn forward at the same time when turning by hand.

Hey Chris, I enjoy your videos, I have a 2003 ford explorer v6 eddie bauer 4x4 that I want to do a differential fluid change, I lifted the 2 rear wheels of the ground and I spone the tires but the other one does not move. And when I go to the other side same thing I spin it and the other tire doesn't move my tag reads this 355 88 3e23 if you can help I would really appreciated.

Great Vid! I have a question: I have a 3000gt vr4 with a vcu type rear diff. With the car jacked up in the air, when i spin one rear wheel, the other rear wheel doesn't spin. Does this mean my rear diff is not working?

Hey. Thanks for the videos. Your drum brake video helped me a lot

ok. thanks

I know mine is a open diff because only one wheel would spin when i got stuck in mud in our backyard to unload pallets from my pickup which unfortunately is only RWD. Think it was last winter and most of the ground was still frozen solid for the most part, and i happened to find the one spot that wasn't i sank into. Was a small hill to gain entry to the back yard, going down it loaded wasn't a issue for some reason. Was when i went to go back up empty that the ground ate my tires.

Thank you Chris for sharing informative video regarding LSD, it sure helped me a lot. 03 Dodge Dakota quad cab 3.9 Liter owner.

@chrisfix

10 жыл бұрын

No prob! Glad it was helpful!

My Infiniti qx4 has LSD labeled on my rear diff and I felt it kick in and grip up when I power slide in the water

If you have a Chevy/GMC truck that has a G80 Gov-loc posi unit it will act like it has an open rear if you test it like in this video. The G80 will let one wheel spin first and then will engage the second for posi traction when centrifugal force engages the locking unit. Check the decal in your GM truck glovebox for the G80 code. It will follow the gear code. Example: mine says GT4 G80 (3:73 rear gears , gov-loc posi).

thanks

@chrisfix

9 жыл бұрын

no bad words hash No problem! Glad the video was helpful!

As the surefire way to tell if a RWD vehicle has limited slip or some form of locker is to jack up the rear of the vehicle as those try moving one tire while watching the opposite as if they spin in opposite directions the vehicle likely has open differentials or torsen LSD as lockers would make the tires turn the same direction. Another way to tell what ratio is in the differential is to tape a piece of string to the driveshaft and mark the tires as those would ensure the transmission is in neutral while rotating the tires once while counting how many wraps the string made.

dear ChrisFix, can you make a tutorial "how to change timing belt for hilux vigo"

Some LSDs operate from rotational momentum so turning your wheels slow like that will not tell you anything. Some other LSDs (clutch pack LSDs) operate from the thrust of the pinion. The trust from the pinion shoves the ring gear over a little and locks the clutch pack together. Same with the spider gears and the axle gear on the opposite side of the differential. Also meaning that turning your wheel like that doesn’t give you accurate information. However, a full on posi differential will turn both wheels the same direction. At the end of the day, it’s more beneficial to run serial numbers or tags/codes (in this case) to get the most accurate information.

Dear Chris, I did the procedure you mentioned to find out what kind of differential my car has. I would like to mention that the vehicle has Manual transmission with transfer box 4H, 4L. When I did the test 4x4 was off so the vehicle was on 2H. So, both rear wheels were turning in the same direction. So that means the vehicle has LSD. Then, I jacked up one rear wheel and started the engine and I tried to move forward with the first gear. I guess the car was supposed to move forward but it didn't and the lifted wheel kept turning. Is this correct? If yes, what is the purpose of Limited Slip Differential?

ok a friend of mine explained that worn spider gears can cause an open axel to react simular to limited slip obviously not as effective but it has helped me in the snow. darn it another thing needs fixed im restomodding it anyway

Nice, I was just wondering if something was wrong with mine. My front tires do this

A GM g80 locker will spin opposite like your Ford open diff. I just replaced a complete rear axle on a 99 silverado 4x4. When the customer dropped off the axle they bought i checked out before i installed it and i was doubtful at first it was a locker because it would spin opposite when i turn either side. I checked the number code, removed the cover checked the carrier and even called a driveline shop. all three confirmed it was a GM 3:73 g80.

@chrisfix

7 жыл бұрын

Thanks for the tip Tony!

@Clearanceman2

7 жыл бұрын

This is true, just got an old (rusty) 2002 S10 for my 17 year old's first real vehicle. Jacked up spin one side one way the other side goes the other way. And the code in the glove box is limited slip.

@Clearanceman2

7 жыл бұрын

***** Probably not, I've used Mobil 1 LS oil in my non limited slip subaru differentials for 300,000 miles (changing every 30,000) They still work great .

@glennmanchester1568

7 жыл бұрын

Tony D yes a g80 is open most of the time and will lock only when it senses a slip by the passenger wheel and there is a little clip type thing that locks them good under normal driving but not for any kind of abuse don't go doing donuts it won't take it I know from experience lol

@BodyWeakDotNet

6 жыл бұрын

RIGHT...

Should the car be in gear or not? If I dont have it in gear one wheel turns and the other dont, if its in gear both turn the same way. LSD or not? E46 330 with the m sport 2 pack. Great vid and thanks for any help:)

I leave 2 lines everytime...but when i spin the wheel clockwise the other wheel goes opposite like itz not...but..check this out....if i spin the yolk (drive shaft...both go the same way

BMW? Does it use a Torsen (True trac) by any chance? There are a few traction-aiding differentials that cannot be tested simply by rotating one tire, the Torsen-style is one.

if the opposite wheel doesnt move at all, does that mean my differential does have limited slip?

I have an 88 Olds Cutlass Supreme Classic. It came with a stock LSD. The way I know that is because when it is jacked up from the rear and is in park, I would try to spin the rear wheels but couldn't. When I changed the diff oil, I took off the cover and saw the "S" clip and springs in the diff housing. I didn't pay attention to the tag on the diff. If your vehicle is in park or gear (manual transmission), the park brake off and you spin one drive tire and the other one spins in the opposite direction, you have an open diff or a LSD that has gone bad. If you cannot spin a tire then you have a LSD or Locker.

yea and look it up on here....theres alot of vids on them

I thought that first sentence was really going to be "I'm going to show you how to tell if your car is a car or truck."

Hey Chris can really use ur advice on purchasing a used rear end at junkyard what are some things to check before purchasing first tome getting a used rear end from salvage yard they want 500$ for a 98 grand Cherokee 4x4

your awesome dude. what a great vide on differential. and now you yutes get busy spin them tires and drive it like ya stole it you may have if all is dreaming all this five senses peace man awakened 79 FORD 351 M yep Posi ERRRRT Peace man Thanks!

Thanks!!have a question. I have a 2001 3.0l ford ranger not 4x4.what type of rear differential fluid do i a need to put on it.cause i have 2 new lucas 75/140gear oil..thanks

Dang this was the first video I ever saw from chrisfix. I remember i was doing an axel swap with lsd on my the jeep but was figuring out how to tell 👍👍