TH350 I'm putting in for my doubler is supposed to be top notch except for it slips in park. That didn't concern me too much, once I verified that the linkage could be accessed from the pan (I'm no tranny expert and never fooled much with TH350s anyway). So, I went in last night and, to my surprise, no broken spring, no bent rod, not even a damaged pawl (as far as I could see). Everything looks fine. I can see the wear where it has slipped, but it doesn’t' look like much, could almost be normal wear maybe.(?) I'm beginning to think maybe the linkage was just a nudge out of adjustment. I have no idea what else to look for, or how to test, and my manuals don't cover anything like this. So, any suggestions? I would hate to put it in and find I have the reported problem.