Once the bellhousing is bolted on, the actual transmission installation goes down very smoothly. We bolted up the clutch, tossed the tranny onto the engine, and worked out the tranny mount. Advance Adapters includes some spacers if you want to try to make a factory AX5 or AX15 tranny mount work. However, we found it easier to build our own using a mount for a GM tranny we had laying around. The AX5 is 155/8 inches long, while the AX15 is 161/2 inches long. Add the 5/8-inch adapter plate and the new tranny combo is 11/2 inches longer than stock, which required only minor slotting of the crossmember mounting holes to work.