? This is the same Tremec HD 6-speed manual transmission used in the 2000 Cobra ?R? and the Ford Racing FR500 Mustang ? Fits 4.6L SOHC/DOHC engines ? Can be used in 1999-04 Mustangs and Cobras ? Requires 1.5' shorter driveshaft, modified crossmember/transmount and other minor modifications ? 440 lbs./ft. torque capacity ? Gear ratios: 2.97/1st., 2.07/2nd., 1.43/3rd., 1.00/4th., .80/5th., .62/6th. ? Does not have mechanical speedometer connection needed for use in earlier Mustangs NOTE: photos & specs may vary