I'm trying to figure out if Im better off finding a different rear end for my 69 buick electra convertible, I put 20 inch foose wheels on the car an in order to do that i had to buy 1inch wheeladapters that goes from 5 on 5 to 5x4.5 but now my tires rub against the frame.. I'm told to go buy a rearend out of a older monte carlo cause they're wider rear ends but then i might have to change driveshaft.. plus im getting airbags installed just ordered airbag brackets to bolt right into my stock coil location.. please give me any advice you can..really appreciate it.. my front end is figured out cause i had drum drakes and i bought 1973 camaro drop spindles and put disc brakes upfront but still for the front i have 1 inch wheel adapters