63-82 > 80-82 Cast Iron Conversion:

Everything you need to convert your weak 1980-82 aluminum differential to handle more than 300 hp. Convert to a 65-79 cast iron differential, half shafts, and strut rods to be able to have confidence in putting all your extra horsepower to the ground. Complete kits with inner and outer axles can handle upwards of 800 HP!

Mostly bolt it kits with minor modifications needed on some applications. Drive shaft may need to be shortened but differs from car to car as the differential mounts can vary up to 3/4" front to back from GM. The nose bushing mount may need to be trimmed to properly fit as well. Most installs go smoothly with minimum modifications.

8082-CONV-1350

1980 - 1982
Cast Iron Rear End Conversion

$5,149.99 each

8082-CONV-1350C

1980 - 1982
Cast Iron Rear End Conversion w/Offsets

$7,399.99 each

808s-CONV-1350CO

1980 - 1982
Cast Iron Rear End Conversion w/Coilovers

$8,699.99 each