Rebuild  
with 
Borg Warner T5 5 Speed World Class Transmission Bearing Kit with Synchro Rings The gear are very  NICE.
World Class, aluminum case, cast "1352", 1st and 2nd synchro rings are multi-piece design

must run a ATF fliud Only go find one rebuild            buyer must pay for return shipping


1996-98 Ford dropped using the T5 in the V8 4.6L Mustang, but kept them the 3.8L V-6 Mustangs. The T5 behind the 3.8L is a 3.35 first gear set with a .68 over drive. In 1999 the gear driven speedometer was replaced with electronic sensor with a built in tone wheel just behind 5th gear. While it is possible to convert the housing and install a speedometer gear, some machining is required.
2005-2010 4.0L Mustang T5. This T-5 underwent many changes to fit into a S-197 body. The shifter was no longer attached to the tailshaft housing. It was mounted to the body and connected by rods. Many refer to this as a remote shifter. Another change came in the way the clutch was released. The clutch cable was replaced by an internal hydraulic bearing also known as a CSC. (Concentric Slave Cylinder). Also gone was the standard slip yoke. It was replaced by a counter balanced flange that the drive shaft bolts to. The gear ratio of this S-197 spec T-5 is 3.75:1 first with a .73 overdrive. While this is great in getting the 4.0L Mustang rolling down the road it doesn’t have a lot of strength or performance. Many owners of the 4.0L Mustang upgrade the clutch only to find the T5 with broken gears or wishing for a closer ratio gear set. The answer to this problem is to install a 2.95:1 first gear set with either a .73:1 or a .80:1 overdrive. This will allow the owner of a 4.0L Mustang to add twice the power without the fear of breaking the gears. Torque rating after the 2.95:1 gear set is installed is 350ft/lbs or about 450hp. This type of T-5 works very well in Shelby’s Terlingua Mustangs