Need advice. I have a 2008 turbo donor engine with 65K miles on it. ZZP tune. Oil is leaking from the rear main seal. A friend of mine, who is a GM master mechanic, told me that the easiest fix is to buy an engine support beam so that the subframe and engine can be dropped enough to remove the transmission and replace the seal. It was my intention to separate the engine from the car and then do it. (I have never done that type of thing). He said his method would avoid wiring harness issues, etc. Please let me know your experience. Thanks. Obviously, I respect my friend's experience but he doesn't have a goblin. You guys do.