What size is our diff cover?

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I am trying to get a chrome cover an the store wants to know if it's a 10 bolt, 12 bolt and like 7 1/2 or 8 1/2. I have no clue what he's talkin about and i can't seem to find the specs on here.

 

[Loeryder]

10 bolt rear with 7.5" cover,
our ring gear is actually 7.625"

http://www.syty.net/phpBB2/viewtopic.php?t=25554&highlight=

There ya go Mr. searchy searcherton... 8)

ATR sells the cover for our trucks and Rick Krupa gets you free shipping on them
www.rkkustom.com

Make sure you keep it waxed or it'll rust fo sho.
Probably easier jus to keep the stock cover and put a drain plug in it.
That' the only advantage I could think of.

Use black RTV on your gasket too since the chrome is so smooth and if you run synthetic it will leak very easily.
Learned that one by experience.

 

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i searched for it but i did not know it was called a ring gear. Thanks for the info!!