Reference Details
- Availability
- standard
- Limited-slip
- Yes
- Notes
- The revised factory parts catalog lists 3.91:1 Sure-Grip differential assembly 2404 128 for SP2 and SD2 cars with the 413. SP2 is the factory model code for V8 Plymouths, including the Savoy.
- Ratio
- 3.91:1
- Type
- rear axle
