You can get the pinless forward accumulator and spring from OPT as well. You could also get the replacement forward accumulator (cast) from most tranny shops, it does retain the pin though. The only diff is that most stock ones are plastic and tend to wear out around the pin, causing 1-2 upshift to slide, hang, slip into 2nd at higher rpm than commanded etc.. You will have to drop the pan to install the forward accumulator, something to keep in mind.

Oregon Performance Transmission, Inc.