Gear ratios: 1st 3.27; 2nd 1.98; 3rd 1.34; 4th 1.00; 5th 0.68
•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 1979-93 Mustang use M-5059-A crossmember
•To fit in 1994-95 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