Father-Son 1974 Duster Project

TF360 said
DD - I have used Flowmaster Delta Flow Mufflers a couple times and love them. On my 74, 8 inch wide wheel with 4 inch backspace and BFG 245-60-15 fit perfect and fill out the wheel wells. Usually on the you can go with a 255-60-15 with 4 1/4 and be ok. Measure to be sure because your rear looks a little different

TF I have Flowmaster Delta flows on her now and I’m getting tired of the racket. Looking for something more subdued. And I need to get some 275s on the back of the car. Looking from the back the car needs some more meat.