TREMEC 5-SPEED HD TRANSMISSION (WIDE RATIO)
M-7003-R58W*
This part is no longer available.
tech notes
- Wide Ratio 1st through 4th
- Gear ratios: 1st 3.27; 2nd 1.98; 3rd 1.34; 4th 1.00; 5th 0.68 (Wide Ratio)
- Features improved shift forks, one-piece counter-shaft, gears made of 4615 steel which increases the torque capacity over that of the M-7003-R58 model
- Input shaft is 10 spline 1.0625 and the output shaft is 31 spline
- Requires a unique bellhousing M-6392-R58 to install in a 1979-95 Mustang
- To fit in a 1979-1993 Mustang use M-5059-A crossmember
- To fit in 1994-1995 Mustang, modify vehicle crossmember, lengthen driveshaft .625" and use clutch fork E6ZZ-7515-A
- 31 spline driveshaft yoke required
- Can be used in 4.6L applications with bellhousing M-6392-M46
- Tremec recommends Synchromesh® fluid