The only issue with this transmission is that it 'hops' in reverse. Not a smooth application of power, it is like it shudders. The problem is exaggerated if backing uphill.
I called TCI and was told the issue was likely caused by trapped air behind a reverse servo piston or something and that it would work itself out.
Thoughts?
When you stated you bought a kit I thought of the pieces and part to assemble one but it appears by the rest of the thread the trans came assembled. I would have to conclude you had a torn seal in the direct(i believe the direct also applies the reverse) , or it has a problem in the pressure control circuit. Usually the low/rev has a way that produces additional pressure for reverse and especially when backing up a hill. Did the pressures noted on this documentation note that when in low or reverse the line pressure was elevated compared to 2 and d?