The hardest part of installing a new Mustang rear main seal is getting to the actual seal. This is a part you will want to replace if you already have your transmission out even if it is not leaking. This is cheap insurance to prevent future leaks.
- Small Flat Head Screwdriver
- Small Amount Of Fresh Oil
- Quality Brake Clean
- Small Drift
Remove the transmission, clutch, flywheel, & spacer plate. These steps can be found in our AOD To T5 Swap Stage 3
& AOD To T5 Stage 4
Using a small flathead, pry the old rear main seal from the engine paying close attention to the orientation of the seal.
Clean the area with quality brake clean and a clean towel and inspect for any damage or foreign materials that may be present.
Once the area is clean, apply a thing coat of fresh oil to the new seal and place into position.
Lightly tap the seal into place with a hammer and small drift until it is flush with the engine block.
Reinstall all of your transmission components and you are done!