No it's not. Most mini-tubs just split the wheelhouse and move it in 3" and a strip of metal welded in. The hinge support can then be re-attached. On my car the whole wheelhouse was removed and an aftermarket tub installed. The hinge assembly got tossed in the process. I believe the two brothers who built the car were only going to race it and not drive it on the street. Hence the pins. :thumbdow: :banghead: