Short Bed Ext. Cab vs Long Bed Four Door

Bedlam wrote:
I suggested maximum pressure in the rear truck tires to eliminate side wall flex as a factor. If you find this helps, you can reduce pressure to closer to suggested inflation tables and see if squirm returns.

I do know there is something wrong with your match up and you need to make one change at a time to figure out the cure. If you still want a newer truck, don't let this stop you but that is a different issue.

Great point! Weak sidewalls caused some major problems back when I had a travel trailer, so I totally see where you're coming from. I'll definitely try the things you suggested, and as you suggested. Thanks!!