Ranger 2WD V6-245 4.0L (1990)
Rear Main Seal Installation Tool
1. Attach the rear crankshaft adapter to the rear of the crankshaft using the supplied mounting screws.
2. Apply a few drops of clean engine oil to the inboard side of the seal/sleeve at the area where the seal contacts the sleeve.
3. Apply a very light film of clean engine oil on the inner diameter of the sleeve and outer diameter of seal.
4. Slide the seal/sleeve over the rear crankshaft seal adapter with flange to the rear of the engine.
NOTE: It is normal for the seal to sit approximately 0.76 mm (0.030 inch) deeper than the sleeve flange. Do not adjust.
5. Use the rear crankshaft seal replacer and supplied bolt to push the rear seal into the cylinder block.
