powerglide launch in high gear
Here is how the playback tach read.
Revved the motor on the top bulb and launch on the bottom bulb; motor got to only 2800 RPM.
stop came on .3 seconds; RPM dropped to 1200
stop came off 2.3 s motor stayed at 1200
slowly built rpm to 6800 and shifted to high
hence launched like in high gear then shifted to high gear
Just tore down the tranny again and seeing no issues (fliud good, minimal clutch dust no chunks); good seals etc.
I think this is a sprag issue on the refreshed ATI converter