63-67 > Differential - 12 Bolt :

Kit includes:

Inner & Outer Axles - made of 1541 material, induction heat-treated and precision ground
134" Wall Thick Half Shafts
1480 Series U-Joints
12 Bolt Inner axles - 30 Spline
Outer axles - 31 Spline
Bearing kit

This is a high-performance kit & requires that both T-arm assembly and rear end be rebuilt. Machining and body modifications are required

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

HSHP-08

1963 - 1979
12 Bolt 1480 Series 30 Spline Kit - Kit Only

$3,299.99 each