Will a spindle, rotor set up on a 1974 Cutlass work on my 1970 Cutlass? Thanks for all your help!

 

This comes up regularly, and the answer is still not very easily. Ball joints and tie rod ends are different, as is spindle height. It IS possible to adapt the newer ball joints and tie rod ends to your older car, but you till have the suspension geometry problem. Aftermarket companies sell shorter upper control arms to help, but that price exceeds the cost of just getting the correct disk brake spindles for your car.

Low Cost A-body Disk Brakes