Bad Ramer Jamer

I just had my trani rebuilt. They put in a lower stall speed t/c. Now it seems like my speedo is reading about 5-10 mph fast. The shop say's my old t/c was probly slipping. I'm not really buying it. Could the lower stall be my problem. Thanks

Number47

nope there isnt any way a T/C affect speedo, unless as stated by your trans shop, its slipping.

CTD Guy76

The speed reads of the rear end. No matter how much it slips that wont effect it.

Bad Ramer Jamer

They said the old one could be slipping. The new seems fine. It's really smooth,,like a whole new truck.

I guess I'll just get someone to pace me going down the highway. Thanks.

Number47

the reason the tranny mentioned slip is because you reconize certian RPM for a specific MPH thus the difference

phox_mulder

Auto tranny's speedo is run by both the rear end sensor and the output shaft sensor on the tranny.

They should be in sync, unless the rear end is slipping.


phox