- Joined
- Jul 11, 2011
- Messages
- 660
- Reaction score
- 129
- Points
- 43
- Location
- Central Texas
- Vehicle Year
- 1992
- Make / Model
- Ford
- Engine Type
- V8
- Engine Size
- 5.0
- Transmission
- Manual
- 2WD / 4WD
- 4WD
I've got a 1991 4.0 4x4 with M5OD sitting in the driveway right now I'm working on for my grandson. It is a leaker! I power washed the engine and now I can see the valve cover gasket leaks so they are getting fixed first. The rear main seal is also leaking but I want to clean up that whole area before I tackle that mess. The rear main seal is $50! Evidently the crankshaft is so highly polished at the rear main that a regular seal won't keep it from leaking so the new seals come with a built in micro sleeve to solve the problem. You might want to start soaking all the nuts and bolts on the trans mount, drive shaft, and anything else you may have to remove to take the transfer case and transmission out with some kind of rust solvent so the job is easier when you decide to do it. Just go slow and map out what you want to do. It's easy to tear stuff apart--the hard part will be putting it back together correctly.