Question about RPO Code - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Desert1957** · 07-16-2009, 10:23 AM

Hey Guys,
I just bought a 1983 C20 for parts , and was wondering on the RPO list what GQ1 Rear Axle-Standard means as far as gear ratio. What is the Standard ratio?
Truck has a knocking 5.7 , 4 speed , Camper Special Z81 , 8600 GVWR , 8 lug.

After a closer inspection , I might not part it out , but fix it and drive it.

Any help appreciated..

Desert

**bwood** · 07-16-2009, 10:55 PM

I looked on an RPO list and it says the same thing that you've already got. You might have to count the drive shaft revolutions vs. axle revolution.

07-16-2009, 10:23 AM	#1
Desert1957 Registered User Join Date: Apr 2009 Location: New Freedom Pa. Posts: 1,335	Question about RPO Code Hey Guys, I just bought a 1983 C20 for parts , and was wondering on the RPO list what GQ1 Rear Axle-Standard means as far as gear ratio. What is the Standard ratio? Truck has a knocking 5.7 , 4 speed , Camper Special Z81 , 8600 GVWR , 8 lug. After a closer inspection , I might not part it out , but fix it and drive it. Any help appreciated.. Desert Last edited by Desert1957; 07-16-2009 at 10:30 AM.

07-16-2009, 10:55 PM	#2
bwood Registered User Join Date: Jan 2003 Location: Denison, Texas Posts: 1,919	Re: Question about RPO Code I looked on an RPO list and it says the same thing that you've already got. You might have to count the drive shaft revolutions vs. axle revolution. __________________ 1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec -Gibson Stainless Cat Back Swept Side -SS Wheels 2005 Honda CRF250R 2006 Honda CRF150F



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