The all new McGaughys trailing arm crossmembers allow you to run up to 3" exhaust on your 1960-1972 Chevy or GMC C10, all while allowing for more drive shaft and ground clearance when used with your McGaughys C10 lowering kit! These crossmembers are built from 3/16 plate steel CNC cut and bent for 100% precision fitment! McGaughys has also come up with the cleanest center crossmember kit on the market today! This kit ties the transmission crossmember & trailing arm crossmember together with ultra clean 100% functional low profile muffler plates for added styling as well and a sure way to protect your mufflers from speed bumps and driveways. This kit also keeps all ground clearance to the max even with a killer lowered stance!