2.76 open differential 741 or 742 case, 8 3/4 axle

Reason for 2.76 gear search, less fuel consumption
I hear you loud and clear.
Sold my pig rusty computer controlled multiple module $200 just to diagnose garbage 2008 full size truck to get away from all the bs.

Lucky for me, my 64 wagon, my daily driver now, came with a 2.76 Sure-Grip and a 318 poly 2 barrel.
Fantastic on gas, great cruiser and highway car, plus headers and dual exhaust for that rumble.