rear end part # decoder - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BoeJaker1976 · 05-26-2008, 07:49 PM

does one exist? i would like to know the gearing on mine and i really dont want to jack it up right now.

Pyrotechnic · 05-26-2008, 11:33 PM

You can look on your glovebox sticker and see if it's listed.

You can figure out the rolling diameter of your tires and use a speed calculator like the one linked below along with your RPM in 3rd gear (or whatever 1:1 is for your transmission) at a certain speed (hopefully your speedometer is accurate) to figure out what rear gear you have.

http://www.public.asu.edu/~grover/willys/speed.html

05-26-2008, 07:49 PM	#1
BoeJaker1976 Registered User Join Date: May 2005 Location: copperas Cove, TX Posts: 85	rear end part # decoder does one exist? i would like to know the gearing on mine and i really dont want to jack it up right now. __________________ 1976 Red chevy steppy, Proud service member, US ARMY 15Y, AH-64D Apache Longbow Armament, Avionics, Electronics technician

05-26-2008, 11:33 PM	#2
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: rear end part # decoder You can look on your glovebox sticker and see if it's listed. You can figure out the rolling diameter of your tires and use a speed calculator like the one linked below along with your RPM in 3rd gear (or whatever 1:1 is for your transmission) at a certain speed (hopefully your speedometer is accurate) to figure out what rear gear you have. http://www.public.asu.edu/~grover/willys/speed.html

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