Well, lost 2nd gear on stock trans at 70,000 miles. Put in new Jasper with triple disc converter, got 5 miles, hit slight upgrade and got a bad shudder as driving on the bumps on the side of the road, never had this issue on the stock trans. They replace the trans, same problem, replaced both u-joints, same problem, they said they couldn't figure it out and good bye. Drove another 1,000 plus and found code for overdrive and converter slip. Replaced and installed #3 trans, still shudders. Had a Dodge dealer check out the truck while #2 was in and they couldn't find anything wrong. With #3 in, test drove (put in 2nd, tow haul mode, exhaust brake on to lock converter) shudder in 2nd brakes on at 35, also shudder towing up slight grade, down shift to 3rd no problem. Anyone experience this? Jasper found an issue with the torque converter on #1, they are supposed to call me after the teardown of #2.
Update......Well Jasper called and said nothing was wrong with trans #2 and that it was my truck. I said I drove into the shop no shudder and drove out with a shudder, how can it be my truck?