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Author: Subject: 7" Sierra Diff mounting bolts.
skidmark71

posted on 1/5/20 at 06:42 AM Reply With Quote
7" Sierra Diff mounting bolts.

Does anybody know the thread size of the 2 bolts for the rear diff mount onto the diff cover. Thanks.
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Myke 2463

posted on 1/5/20 at 09:05 AM Reply With Quote
M 10 on mine.





Be Lucky Mike.

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jacko

posted on 1/5/20 at 04:03 PM Reply With Quote
M12
I must learn to read the hole question
It is 10mm for the rear cover not 12 as I put first
The two bolts are 12mm holding the dif to the chassis
Jacko

[Edited on 1/5/20 by jacko]

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skidmark71

posted on 2/5/20 at 08:05 AM Reply With Quote
Thanks for the replys guys. Much appreciated. I have already tried M10 and although it starts and screws in about one turn it starts to bind up and is at a slight angle. It's not bottoming out and the threads are clean and undamaged. I don't want to force it just in case I crack the cover.

Im thinking it may be an imperial thread? 3/8 UNC or UNF. I've ordered a couple of these to give them a go. Will let you know how I get on.

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rusty nuts

posted on 2/5/20 at 09:54 AM Reply With Quote
What pitch have you tried? There are at least 3 different pitches for 10 mm threads.
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jacko

posted on 2/5/20 at 04:06 PM Reply With Quote
Defo 10mm
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