Blazer Carlos

Existing is a 10 bolt but shorter than needed, factory. I need to know what truck uses the same differential as the 1989 Blazer 4x4, or a location to get diamentions? Thank you

I need help figuring out if I can use the rear differential housing out of a 1990 4x4 suburban in my 1989 Chevy 4x4 Blazer. A new ring, pinion, and Carrier is currently in the Blazer but the rear end housing is shorter than factory (must have been switch out prior) I know that 1989 was the first year for a 30 spine axle and found that the axles are slightly different in length, Blazer 31.313 length verses Suburban 31.375. Can I use the housing out of the suburban in the blazer? I want to return to factory Thank you!