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Old 04-04-2017, 02:03 PM   #5
Keith Seymore
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Join Date: May 2009
Location: Motor City
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Re: Rear end questions.

Quote:
Originally Posted by Ski-me View Post
Interesting!

Did some looking and your RPO code "GQ1" means the standard axle ratio given the engine/tranny/and federal or CA for that year. So, not really easy to tell unless you take the cover off.

Looking at this chart (pdf) and your tranny (MX1), looks like 4.10.... page 6.
https://www.gmheritagecenter.com/doc...t-Suburban.pdf
Nicely done. Looks like my work here is finished -

K
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