94 1500 6.5 Rear Diff

[68cten]

I bought a 94 6.5 with a blown rear diff. Found a guy selling a full rear out of a 95 2500 6.5 would this be the same diff? Thanks And if not which years/models will work thanks

[WillDaBeast69]

if its the 2500HD it will be the 14bolt full float. if its not the hd it will be the semi float. but it will be the same u-joint in either axle

[MTGMC]

needs to be same gear ratio as well

[WillDaBeast69]

needs to be same gear ratio as well

if its out of a z71 it should be a 4.10

[grayblazer]

The 1500 truck will have a 6 lug axle and you need to determine which it is. I believe most, if not all, of the 6.5 powered 1500 trucks had the 14SF rear axle but in no ways 100% sure. Very quick and easy check.....count how many bolts are on the diff cover. Should be either 10 or 14.

A 2500 truck could have either an 6 or 8-lug 14SF, or even a 8-lug 14FF.

For the guy above saying "if its out of a z71 it should be a 4.10" is completely wrong. The Z71 option has had absolutely nothing to do with the gear ratio except for may a year or two in the mid-late 2000's, and I don't even think you could get 4.10 in a 1500 truck in the mid-90's.