Had some free time today and decided to clean up the nismo diff cover a bit before installing it along with the diff bushings. The oem cover was in pretty rough shape, tons of casting flash and little imperfections. After polishing the cover a lot of the imperfections are removed, however it's not perfect. Definitely looks nicer though

 

Very nice indeed

 

thanks man

 

How about sharing the products use and the polishing process as well?

 

Did you weld a bung for an oil temp sensor?

 

^^^What he said.^^^

It looks great but if you don't tell us how you did it, you're just showing off and not helping.

 

Process used for polishing cover
- Use a die grinder/air sander with abrasive an abrasive disc (either 36 or 50 grit will work fine) as aluminum is on the softer side for metals.
- Clean up all the imperfections that are left from the casting mold
- Hook up a wire wheel and detail all the cracks and crevices to remove some of the oxidized metal on the surface
- Now go back to the air sander and use a scotchbrite (Fine grade) sanding disc. This will eliminate and blend in all the sanding marks from using the previous heavier grit discs.
- Now use this process with multiple size discs ranging from 3" for easy to reach areas and down to 1" for hard to reach areas.
- After you feel that you've cleaned up and blended the imperfections to your liking proceed to polishing.
- U can pretty much polish this whole cover with 3 wheels. ( You can see the wheels I used in the picture, the ones that are black from the polish residue)
- You can use whatever polish you want. I use Adams detail products for maintain my DD G coupe. So I use the #1 first and then proceed to #2 to give it a little extra bling.

Hope this helps whoever would like to do this to there cover, total time including lunch break was 4 1/2 hrs.