Cool.. I still have 1st 2nd 3rd still and there is no slipping but no 4th thing is irritating and pissin me off.

 

im with you man.....i just rebuilt mine and its doing this?

could a silinoid be shot?

 

Wonder if that accumulator piston is cracked/broken?

I've had hair-line cracks in those, and history has proven those are prone to breakage... Thanks to GM cutting budget buy moving away from metal pistons. FLT sells a kit to replace those (if that's the problem)... or buy a built unit with no worries afterwards.

 

how u think i feel with no dam 2nd and tq converter get out of lock up and the rpms are surging like crazy. flt level 5 would be my choice