[beastie]

After I installed my TransGo shift kit, I had the same problem; however, I needed to get my tranny rebuilt, I had just blown up OD, but that was a known problem on the early 4R70Ws, I hope you don't need that. I dropped my valve body I think 6 times, and I could never figure it out, I had to bring it in, and let them figure out what was wrong, and I watched them disassembly my tranny, and the OD clutches 1 I think was broken, and the others were just worn down.