just lower your tranny by removing the tranny mount, that should give you about 2 inches of clearance for the install. thats what I did. Dont cut up your truck.

 

No problem. It's not obvious just looking at things under there, but it turns out GM thoughtfully stamped a groove in the sheet metal to provide just enough clearance to get the assembly out. So the 'vette servo is in, and the truck body is intact.

 

LOL! j/k on the cam swap. My next mod will most likely be a high stall rpm torque converter, around 2600 or 3000. This 1400 rpm stock unit is strangling my 4.8.