The standard 2007 Mustang offered a 5-speed manual or a 5-speed automatic; the Shelby GT500 used a 6-speed manual. The exact transmission depends on the trim you’re considering.
In detail, Ford’s 2007 S197 Mustang lineup gave V6 and GT models two primary transmission choices: a Tremec 5-speed manual for enthusiasts and a 5-speed automatic for convenience. A high-performance variant, the Shelby GT500, stacked a modern 6-speed manual to handle its increased power output.
Transmissions by trim
Standard Mustang transmissions cover the common V6 and GT models from that year.
Standard Mustang (V6 and GT)
- 5-speed manual Tremec TR-3650
- 5-speed automatic 5R55S
These two options accounted for the majority of 2007 Mustangs, giving buyers a choice between a traditional manual and an automatic transmission.
Shelby GT500
- 6-speed manual Tremec TR-6060
The Shelby GT500, introduced in 2007, used a dedicated 6-speed manual transmission to handle its higher horsepower and torque.
Summary
For the 2007 Mustang, transmissions varied by trim: standard V6 and GT models offered a 5-speed manual or 5-speed automatic, while the Shelby GT500 used a 6-speed manual to manage greater performance. This setup reflects Ford’s approach to balancing everyday drivability with high-performance capability in the same model year.