PowerTrax No-Slip Traction System Differential Lock Assembly Mustang 65-73 Drop-In 9” 31-Spline

With the PowerTrax No-Slip Traction System drop-in differential lock assembly, you can enjoy superior traction in slippery situations. It locks both axle shafts together, ensuring your 1957-1973 Mustang’s rear tires spin at the same speed.

Features and Benefits:
- Installs in stock open differential carrier housing with side gears
- Designed to fit 9” Ford differentials
- Fits 31-spline axles
- Locks both axle-shafts together
- Durable steel construction

Made from durable steel, this lock assembly is designed to fit 9” Ford differentials and 31-spline axles. It installs into your stock open differential carrier housing with stock side gears, making installation straightforward. Plus, it replaces the spider gears without affecting your ring and pinion settings, so you don’t need to perform extensive modifications.  

Please Note: Professional installation is recommended for this part.