Please ensure to adjust the caster springs at proper ride height, paying particular attention to the stop bolts!!
You must adjust stop bolt (If it's still there and not busted) with 1/4 to 1/8 play before swingarm hits it. Do this on level floor only. If you dont leave enough clearance, the truck will not stop or plug as the the drive tire will slip and slide. For the **** of it, try tightening the stop bolt until there is no clearance, then tst drive truck. You wont be able to stop or reverse!!

that's pretty bad.
you know what your doing. enjoy!

Stam I checked both stops and made adjustments. The springs are smashed almost flat. Lol. The a arm is almost against the frame. I'm going to try new ones.

I have only ever changed a set on an old easi reach.
Check the down travel stop bolt, it should have around 1/2 clearance when the truck is sitting on level ground.
The upper stop bolt breaks frequently.