Front end gear ratio? 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eric67m · 10-30-2009, 08:32 PM

I am trying to figure out the ratio on on the front axle of my 4x4 with out pull ing the cover. It is an 8 lug dana 44, open disk.

When I jack up one wheel and lock both hubs the driveshaft will turn just over two revolutions per wheel revolution. I assume that this would be 4:10 (1/2).

I have only done this with rear ends before. Am I supposed to do two wheel revolutions?

70duramax · 10-30-2009, 10:27 PM

look for a tag on the rear axle its gonna be the exact same ratio or very very close to the front ratio.

*2tons of fun* · 10-30-2009, 10:44 PM

yes, 2 revs makes it a little easier it id.

Blazer1970 · 10-31-2009, 08:10 AM

Yes, 2 turns of the wheel. 4.10 should be correct. What ratio is your rear axle?

**special-K** · 10-31-2009, 08:32 AM

Your Dana44 front axle should be 4.09:1.

eric67m · 10-31-2009, 10:18 AM

So I could pair this up with a 14 bolt 4:10 or 4:11? Currently this frame has a dana 60 that is wider, halfway mounted in to it. The perches would have to be moved. I would rather move and make a 14 bolt work.

LONGHAIR · 10-31-2009, 03:31 PM

Quote:

Originally Posted by eric67m

So I could pair this up with a 14 bolt 4:10 or 4:11?

Yup, the factory did it all the time.

10-30-2009, 08:32 PM	#1
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	Front end gear ratio? 4x4 I am trying to figure out the ratio on on the front axle of my 4x4 with out pull ing the cover. It is an 8 lug dana 44, open disk. When I jack up one wheel and lock both hubs the driveshaft will turn just over two revolutions per wheel revolution. I assume that this would be 4:10 (1/2). I have only done this with rear ends before. Am I supposed to do two wheel revolutions? __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"

10-30-2009, 10:27 PM	#2
70duramax Registered User Join Date: Dec 2008 Location: morrisdale pa Posts: 46	Re: Front end gear ratio? 4x4 look for a tag on the rear axle its gonna be the exact same ratio or very very close to the front ratio.

10-30-2009, 10:44 PM	#3
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Front end gear ratio? 4x4 yes, 2 revs makes it a little easier it id.

10-31-2009, 08:10 AM	#4
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	Re: Front end gear ratio? 4x4 Yes, 2 turns of the wheel. 4.10 should be correct. What ratio is your rear axle? __________________ Tim

10-31-2009, 08:32 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Front end gear ratio? 4x4 Your Dana44 front axle should be 4.09:1. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-31-2009, 10:18 AM	#6
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	Re: Front end gear ratio? 4x4 So I could pair this up with a 14 bolt 4:10 or 4:11? Currently this frame has a dana 60 that is wider, halfway mounted in to it. The perches would have to be moved. I would rather move and make a 14 bolt work. __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"



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