Richard Inglett
Member
- Joined
- Jan 22, 2002
- Messages
- 83
I have a PMAC/Century Automotive transmission. Very happy with its' performance. However, had a little trouble getting the speedometer to read correctly. Had to use green gears (10 tooth drive & 29 tooth driven) to get 67.5 MPH at 2000 RPM. Study of three other GN transmissions revealed that an orange 11 tooth drive gear and a blue 30 tooth driven gear should have been what was needed.
Is it possible that the tail shaft in my transmission is a little different? Just courious to see if GM made different tail shafts for the 200-4R.
Also, speedometer reads correctly but Scanmaster speed is about 10 MPH less than actual. Does this matter?
Is it possible that the tail shaft in my transmission is a little different? Just courious to see if GM made different tail shafts for the 200-4R.
Also, speedometer reads correctly but Scanmaster speed is about 10 MPH less than actual. Does this matter?