Pickup seats are too wide. Chevelle buckets or bench bolt in. There isn't enough room for high-back buckets, they hit the back window unless you're less than 5' tall. A tilt wheel from a full-size Chevy will fit , too, if you only use two of the four bolts. My old Camino got the front end totaled, the guy who got it put a front end off a '67 Chevelle on it, looked different but bolted on. The '72 Elky (and wagon) were the basic '67 stuff underneath.