Finished the front diff and now the rear diff. 2008 Chev Suburban 3/4 ton with 260,000 miles. The pumpkin looks grimy because I spray it with Krown.
Out Motomaster 75W90.
In Pennzoil 2.75 quarts 75W90
The axle is a 14 bolt 10.5 inch GM. The cover came off cleanly. The Felpro gasket was attached to the cover with Permatex High Tack. It was on solidly. I had to scrape some of the gasket off then sprayed the gasket with Permatex gasket remover, letting it soak for an hour. It totally weakened the gasket and it scraped off easily. I then sprayed the dried High Tack and it totally dissolved it making it possible to wipe it off. Permatex gasket remover is very good stuff and can also be used to remove your finger prints. Use gloves.
The magnet had a bit of debris but not as bad as 5 years ago when I was towing.
I used some High Tack to stick the gasket to the cover to the gasket again and the gasket stayed in place while I maneuvered the cover in place. The brackets at the top were a bit of a PITA due to the stiff brakes lines attached to the brackets.
A few tips:
- make sure to clean the area above the pumpkin where the brackets are because that area will be full of road grime caught by the brackets,
- as soon as the cover is off, place some paper towels or rags over top the gears to keep dirt out.
- I might invest in one of those reusable gaskets to save time cleaning the paper Felpro gasket off.
- be careful when backing out the bolts holding the brackets. The brackets have side loads on them from the stiff brake lines and can induce stripping of the threads. Take your time.
- make sure to replace the magnet before buttoning up.
Enjoy the photos.
Out Motomaster 75W90.
In Pennzoil 2.75 quarts 75W90
The axle is a 14 bolt 10.5 inch GM. The cover came off cleanly. The Felpro gasket was attached to the cover with Permatex High Tack. It was on solidly. I had to scrape some of the gasket off then sprayed the gasket with Permatex gasket remover, letting it soak for an hour. It totally weakened the gasket and it scraped off easily. I then sprayed the dried High Tack and it totally dissolved it making it possible to wipe it off. Permatex gasket remover is very good stuff and can also be used to remove your finger prints. Use gloves.
The magnet had a bit of debris but not as bad as 5 years ago when I was towing.
I used some High Tack to stick the gasket to the cover to the gasket again and the gasket stayed in place while I maneuvered the cover in place. The brackets at the top were a bit of a PITA due to the stiff brakes lines attached to the brackets.
A few tips:
- make sure to clean the area above the pumpkin where the brackets are because that area will be full of road grime caught by the brackets,
- as soon as the cover is off, place some paper towels or rags over top the gears to keep dirt out.
- I might invest in one of those reusable gaskets to save time cleaning the paper Felpro gasket off.
- be careful when backing out the bolts holding the brackets. The brackets have side loads on them from the stiff brake lines and can induce stripping of the threads. Take your time.
- make sure to replace the magnet before buttoning up.
Enjoy the photos.
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