Does anyone know if a rear end from a 1974 monte carlo will bolt onto a 1969 cutlass without and modifications?

 

No will not fit without mods

 

It's a different width for starters.

 

Thanks guys

 

If you contact a salvage yard chances are they have a cross-over book and can tell you what years/models are a direct fit.Depending on how well you know them and what kind of mood they're in.Tell them what you're looking for and if they don't have it ask them if they have a cross-over book and if they can tell what works.Usually I do this on a friday as opposed to on a monday,people are more likely to do you favor on a friday.
I have a Nova cross-over book from Hollender that I paid around $20 for.

railguy

 

Any A body rear from 1968 to 1972 will physically fit (may need different u-joints and driveshaft for Chevy rears).

Buick Skylark, Gran Sport (GS)
Chevrolet Malibu, Chevelle, Monte Carlo, El Camino
Oldsmobile F85, Cutlass, 442
Pontiac Tempest, LeMans, GTO, Gran Prix