Question Torqueflite A904

a little hard to interpret your question. But if I read it correctly, yes you can trigger an upshift by slightly letting up on the throttle. IIRC, that is a symptom of incorrect throttle pressure setting. I believe you need to need to adjust kickdown linkage. I believe Trailbeast is one of the resident authorities on trannys, no double ontonder(sp?) intended, hahaha.