It's my Son's 4X4, an odd 197? K5 thing . 454, TH350, ratchet shifter, no matter what gear it's in there's zero engine braking ~ let off the throttle and the engine drops to idle ~ unsafe in a 4X4, worse because my son is fearless and goes down far too steep hills and canyons . This tranny is freshly rebuilt and supposedly came with a brandy new torque converter . What to look for ? . TIA,
Looks like it may have to do with the valvebody and how it was rebuilt: Do TH350/400's have engine braking? Sounds like you'd need to talk to whoever rebuilt the trans.
THANK YOU for this link ! . I'm sure the dufus who rebuilt the tranny didn't set it up for engine braking, I hope my son will take it back as I view it is unsafe, especially in a 4X4 .