Quick help on gears 8.5 or 8.6

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Apr 30, 2008 | 02:55 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Quick help on gears 8.5 or 8.6

I am looking into gears will these work or are they F bod gears, I need the 8.6 ring gear??

http://cgi.ebay.com/ebaymotors/4-10-...spagenameZWDVW

Thanks John

Apr 30, 2008 | 04:32 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Hmmmmmmmmm.

John

Apr 30, 2008 | 04:51 PM

nonnieselman

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From: Crystal Springs, MS

8.5"s fit in there.... so do the 8.6"..
But the 8.6" wont fit in the older 8.5s

Haha.. you get it?

Apr 30, 2008 | 05:02 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Um ok so a 8.5 or 6 ring gear will work for sure, long as it isn't a pre 01 rear. What about the eaton posi units, they are going to be a 30 spline, I only see them for a 8.5..

John

Apr 30, 2008 | 05:06 PM

magnetized

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From: Baton Rouge, LA

My mechanic couldn't get my first set of gears installed, we think they were for an 8.5 axle, I bought them 2nd hand and couldn't tell for sure. No issues when the 8.6s were installed