Cast aluminum or Chrome Rear cover

[95blkstang]

I am going to change the dff cover and was wondering what is best to use or does it really matter Also What Fluid should I use
Thanks

 

[88stangmangt]

if you go with chrome you have to sand it off on the mating surface or after a while it will flake and leak.

 

[Red_LX]

I wouldn't bother getting a chrome cover, those things look tacky anyway.