I have a 1968 delta 88 custom with a 455 engine. I looking to change the front upper and lower control arm with a new performance control arm.Online i see them for cutlass and 442 will they fix my car?If not are there other compatible cars i can find the upper and lower control arms.

 

I'm not an expert on full-bodied GM cars, but I'm pretty sure A-body A-arms won't fit on a B-body chassis. There are others here who know better than I where to look for these parts. You might consider something custom too. Are yours missing or damaged? If not, new ball joints and poly bushings (if can be found) can be installed and reused.

 

I doubt you'll be able to find aftermarket control arms for your car.

I wouldn't use polyurethane bushings on my 71 98. I did replace the ball joints, control arm bushings, sway bar & stabilizer bar bushings on my 64 98 with rubber cheapies. The car drove much better and I never even replaced the shocks or springs.
​​​​​​

 

No suspension parts interchange from the A-body cars to the 1965-70 Olds full size cars. Chevy Impala parts do not interchange either. The 1965-70 full size cars used a frame, suspension, and brakes that were unique to each division. There are no aftermarket suspension parts for these cars because there is no demand for them and thus no business case for any company to spend the time to design, fabricate, and warehouse them. Heck, you can barely get stock replacement parts for these cars.