rear gears - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chebyshortbox65 · 04-15-2012, 03:36 PM

Anyone know what is the common rear gear ratio for a six/350c would be the glovebox stickers gone and I havent had time to pull rear cover it has a 5.3 and im getting ready to swap a 700r4 in and wanna get an idea of rear gears .by the way the trucks a 81 gmc shortbed
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Shane22696 · 04-15-2012, 05:59 PM

Most of the sixs I've seen come with 4.10s or 4.11s depending on the axle. I think some might have gotten 3.73s tho.

Keith Seymore · 04-15-2012, 06:45 PM

I assume 2wd: 2.73 base; 3.08 optional.

For 4wd = 3.42 base with 3.73 optional.

K

463 · 04-15-2012, 08:52 PM

one more http://www.huntergraham.com/twcc.htm

Shane22696 · 04-15-2012, 09:17 PM

Oh yeah forgot you were talking about a half ton. I'm use to 3/4 tons. sorry!

Keith Seymore · 04-16-2012, 10:47 AM

Quote:

Originally Posted by Shane22696

Oh yeah forgot you were talking about a half ton. I'm use to 3/4 tons. sorry!

Ya - he said shortbox so mind immediately went to 1/2 ton setting.

K

Shane22696 · 04-16-2012, 10:52 PM

Yeah me too, I just had a brain fart

04-15-2012, 03:36 PM	#1
chebyshortbox65 Registered User Join Date: Nov 2011 Location: yucca valley,ca Posts: 206	rear gears Anyone know what is the common rear gear ratio for a six/350c would be the glovebox stickers gone and I havent had time to pull rear cover it has a 5.3 and im getting ready to swap a 700r4 in and wanna get an idea of rear gears .by the way the trucks a 81 gmc shortbed Posted via Mobile Device

04-15-2012, 05:59 PM	#2
Shane22696 Registered User Join Date: Jul 2011 Location: Zebulon GA Posts: 128	Re: rear gears Most of the sixs I've seen come with 4.10s or 4.11s depending on the axle. I think some might have gotten 3.73s tho. __________________ 80 K10 350 4 spd 4 Inch lift, 33 inch BFG M/t

04-15-2012, 06:45 PM	#3
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,229	Re: rear gears I assume 2wd: 2.73 base; 3.08 optional. For 4wd = 3.42 base with 3.73 optional. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

04-15-2012, 08:52 PM	#4
463 Registered User Join Date: Nov 2007 Location: Sask Canada Posts: 1,666	Re: rear gears one more http://www.huntergraham.com/twcc.htm __________________ Trueman

04-15-2012, 09:17 PM	#5
Shane22696 Registered User Join Date: Jul 2011 Location: Zebulon GA Posts: 128	Re: rear gears Oh yeah forgot you were talking about a half ton. I'm use to 3/4 tons. sorry! __________________ 80 K10 350 4 spd 4 Inch lift, 33 inch BFG M/t

04-16-2012, 10:52 PM	#7
Shane22696 Registered User Join Date: Jul 2011 Location: Zebulon GA Posts: 128	Re: rear gears Yeah me too, I just had a brain fart __________________ 80 K10 350 4 spd 4 Inch lift, 33 inch BFG M/t



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