I am working on replacing the 12 bolt differential in my truck. I installed the current one around 1979. I am not fully confident that I got the spacing between the two brackets to match the distance between the center bolts in each leaf spring. I will make brackets for the new one, but I want to confirm that the distance apart that I set them matches that distance on an original torque tube differential.

Does anyone have a torque tube differential that is accessible to measure the distance between the hole in each mounting bracket? If yes, then what is that distance? My truck is a 1950 half ton.

Thanks!

1950 GMC 100 Panel Truck, 1958 270,
3-spd Saginaw with BW OD,
3.73 12 Bolt Differential from a 1966 C10,
Front Disc Brakes
Hill Holder
Bought it in pieces 9-1976, driving since 6-1978
Follow in the DITY