Speedo gears

[DocZG]

Does anyone know if the gear in the tailshaft of the transmission of a 3550 is interchangeable with the gear of a t-5. After some help from a police officer i have discovered that my speedo is off by about 8-9 mph off at 50....

 

[DocZG]

i know someone has to know this....

 

[earleys94gt]

This is according to Steeda...

Manual Transmissions with 7 Tooth Drive Gear
1983-1989 T-5 OEM
Pre 1993 T-5 Aftermarket
1996-1998 Cobra T-45 OEM
All Tremec Transmissions


Manual Transmissions with 8 Tooth Drive Gear
1990-1995 T-5 OEM
1996-1998 T-45 OEM Except Cobra


Automatic Transmissions with 7 Tooth Drive Gear
1983-1989 Automatic Transmissions


Automatic Transmissions with 8 Tooth Drive Gear
1990-1998 Automatic Transmissions