63-82 > Differential - 12 Bolt :

Upgrading to a 12-bolt differential for your 1970 Corvette can provide several benefits, including:

Increased strength: The 12-bolt differential is stronger and more durable than the factory differential. This can handle more power and torque without risk of failure, making it ideal for high-performance driving.
Improved traction: The 12-bolt differential can provide better traction and grip, especially when using wider tires or racing slicks. This can lead to improved acceleration and overall performance.
Gear ratio options are limited: The 12-bolt differential only offers two gear ratios for the Corvette, 3.73 and 4.10..
Better cooling: The 12-bolt differential has better cooling than the factory differential. This can help to reduce the risk of overheating and prolong the life of the differential.
Improved reliability: The 12-bolt differential is a proven design that has been used in high-performance vehicles for many years. This means that it is reliable and has a good track record of performance.

12 Bolt - 373

1963 - 1979
12 Bolt Rear End - 3:73 Gears

$6,499.99 each

12 Bolt - 411

1963 - 1979
12 Bolt Rear End - 4:11 Gears

$6,499.99 each