Lots of discussion on the subject with some not being able to solve the problem. I was wondering, for those who could not solve it, if the problem could also be caused from the axle wrapping and unwr...
Butch, I was thinking of those who are pulling heavy enough loads to have the rear axle rap up a little bit against the leaf spring, which would turn and load the leaf springs. Then, if the trailer pulled and then pushed on the truck, the spring could load and unload creating a chucking motion. Kind of like an on and off of the gas pedal. I understand this is a far out idea but some have tried just about everything in the book without solving the chucking problem.