Posted December 30, 20195 yr Hi guys, I have a 93 Cummins with an auto tranny. Evrything is stock. Expressed as a percentage, how much torq converter slippage is common for these trucks? 8% 10% 15%??
December 30, 20195 yr I can't answer your question, but I think that would largely depend on what converter you have, what the stall is set up to, and how much load is on the motor at any given time (more load = more slippage). Someone might have some information about a stock powered truck with a stock trans though.
March 16, 20205 yr If temps are regular over 150deg with no load I'd say theres large percentage of slipping
March 20, 20205 yr Owner 9 hours ago, kzimmer said: No lockup in a 1st gen. Depends. TorqueFlite 727 transmission No, Its a 3 speed with no lock up. This was renamed to 37RH There was a 4 speed with lock up. A518 model. Which this came to be renamed 46RE later in life. Then the 47RE came out in 1994. This was called A618 transmission (old name).
March 20, 20205 yr It was a 4 speed (727 with an OD housing added on) but didn't have lockup until 1994 when it was renamed to the A518/46RH. At least not in the diesels. Edited March 20, 20205 yr by kzimmer
March 20, 20205 yr Owner Thanks. I remember dealing with a 1st gen with a PCM issues about 4th gear or lockup. But never got to play with the truck to see.
March 20, 20205 yr I had to google it to be sure lol, It sounds like the 4 speed might have come in around 91.5?
Hi guys, I have a 93 Cummins with an auto tranny. Evrything is stock. Expressed as a percentage, how much torq converter slippage is common for these trucks? 8% 10% 15%??