Attention: TDR Forum Junkies 
When backing my fifth wheel up a slight incline slowly, it starts to buck and jerk. It also does it with my pickup camper in the bed but not nearly as much. I'm pretty sure it's rear spring "wrap" that is causing it. No sign of the problem unloaded.
It did not do this last year with the same trailer.
I only use the fifth wheel to travel South for the winter and I can only think of 2 things I changed since I towed it last year.
1. I installed larger tires, went from 245's to 265's. These are about 1/2 inch taller.
2. I had the transmission modified and now have a much tighter torque converter.
See my signature for other data on the truck.
Any ideas or suggestions? I know this was a problem on some of the first generation trucks with a standard transmission.
It did not do this last year with the same trailer.
I only use the fifth wheel to travel South for the winter and I can only think of 2 things I changed since I towed it last year.
1. I installed larger tires, went from 245's to 265's. These are about 1/2 inch taller.
2. I had the transmission modified and now have a much tighter torque converter.
See my signature for other data on the truck.
Any ideas or suggestions? I know this was a problem on some of the first generation trucks with a standard transmission.
