So I have done another mod to the mini excavator which was the control lever for track moment , front blade and auxiliary hydraulics control lever. I felt that doing this mod was a safety feature that was of need. Materials used for this mod were the original control lever hardware ,1 1/2 long 10nn bolts and nuts and 2inch long coupler nuts also 10mm threads. I would suggest buying the nut coupler over making them if you dont have tools for drilling or making threads. After all the mods I still love this machine .