What is a left-handed screw? I only have limited knowledge? Is it like the stops that they gave us in the kit? I put the drive tran together exactly like the plans on the FIRST website.(
www.usfirst.org) THe plans for it are under team resources>documents>drivetran closeup. GIve or take a few change like I didn't put on the locking rings. The driveshaft is the 3/8 keyed axle that they gave us.