This is a very nice original Chevy truck GM 12" 60486 bellhousing with a new clutch fork, stud and boot. It can be used with a M20 M21 or M22 but would need the adapter ring for the input shaft. All holes are good and the 4 mount bolts have stainless helicoils. The is a small cut (not a crack) that was epoxied as pictured which won't effect the performance. It's detailed and ready to install. The buyer will pay the actual shipping to the 48 states.