I've been wrong before (just ask wife), the only way to creep forward when in park or neutral is from the forward clutch pack due to its driven by the input shaft. possible due to the 5th plate you added is binding on inner spline hub?
FIVE?!?!? Okay...it's like this....time to buy some pla-doh and check drum and clutch to drum clearance. I prefer the green, but that's only cuz I'm a transmission magician.. THe front ring gear hub might be pressing on the forward clutch; engaging it. JUST LIKE moparlvr166 says. Four forward red eagles is PLENTY. They're (5) needed in the front drum. .061's
There are five clutches in my front drum, four in the rear drum. I know it's confusing because the rear drum is the forward drum. I try to stick with "front" and "rear" for the clutches/drums but I might have slipped up somewhere in this thread. The clutch configuration is OK though.
The clunking I mentioned is caused by 0.020 play between the clutch retainer and the piston retainer. They slide on the splines as intended. There is no play between the belleville spring and the piston.
