Originally Posted by BC59
Why are folks changing out SM420s for 465s? SM420 is a good box IMHO.
The SM465 is better.
Be aware the SM 465 has a larger front brg. retainer.
You need a bell housing with the larger hole.

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum