What rear ends will fit a 72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gysgtc · 06-08-2014, 05:49 PM

I put a 700r4 in my 72 C10. It has 3:08 gears in the rear end. Looking to change it to 3:73. What year truck rear ends are the same as a 72 with coil springs?

67swb72klb · 06-08-2014, 07:17 PM

the 71 and 72 are 5 lug and the same width

gysgtc · 06-09-2014, 05:24 AM

Thank you.

Sklptrljay · 06-09-2014, 08:08 AM

The 67 through early 70 rear ends will fit, but they are a little narrower and are 6 lug. They do make 5 lug axles that can be swapped in. You can also use later model truck rear ends that have 5 lug patterns, but if you have coil springs you would have to weld perches on.

bonnieclyde100 · 06-09-2014, 03:31 PM

why dont you just change the ring and pinion?

**67 cst swb** · 06-09-2014, 03:48 PM

Quote:

Originally Posted by bonnieclyde100

why dont you just change the ring and pinion?

x2

boostedc10 · 06-09-2014, 03:58 PM

Quote:

Originally Posted by 67 cst swb

x2

x3, i don't know why everyone seems to be afraid of a ring and pinion.

Tinkermc · 06-09-2014, 04:22 PM

67-68 allow you to have extra room for tubs and larger tires, just my 2cents.

NO CHARGE !!!!

Sklptrljay · 06-09-2014, 06:00 PM

Quote:

Originally Posted by bonnieclyde100

why dont you just change the ring and pinion?

You will have to get a different carrier too, and while your doing it might as well go posi, right?. With parts and labor it starts creeping up towards a grand. A decent used rear end can be had much cheaper.

I'm in the same boat right now, I'm looking for a 3.73 rear end.

bonnieclyde100 · 06-09-2014, 11:39 PM

Quote:

Originally Posted by Sklptrljay

You will have to get a different carrier too, and while your doing it might as well go posi, right?. With parts and labor it starts creeping up towards a grand. A decent used rear end can be had much cheaper.

I'm in the same boat right now, I'm looking for a 3.73 rear end.

if the diff is a 12 bolt richmond makes a ring gear that will fit that carrier. i had a 3.04 that i put a 3.73 in on the original carrier. summit racing sells them

Sklptrljay · 06-10-2014, 12:20 AM

Quote:

Originally Posted by bonnieclyde100

if the diff is a 12 bolt richmond makes a ring gear that will fit that carrier. i had a 3.04 that i put a 3.73 in on the original carrier. summit racing sells them

I was looking online myself tonight and saw that they make 3 series 3.73's. I never knew that, that is a great option.

06-08-2014, 05:49 PM	#1
gysgtc Registered User Join Date: Apr 2010 Location: Sutton, WV Posts: 340	What rear ends will fit a 72 I put a 700r4 in my 72 C10. It has 3:08 gears in the rear end. Looking to change it to 3:73. What year truck rear ends are the same as a 72 with coil springs?

06-08-2014, 07:17 PM	#2
67swb72klb Registered User Join Date: Dec 2010 Location: livingston co.mi Posts: 2,464	Re: What rear ends will fit a 72 the 71 and 72 are 5 lug and the same width __________________ California 65 GTO---Texas 64 burb 283 ---Oklahoma 67 CST SWB BBW wood bed 327 2004r---New Mexico 72 k10 350 350 auto---Georga 72 short step project

06-09-2014, 05:24 AM	#3
gysgtc Registered User Join Date: Apr 2010 Location: Sutton, WV Posts: 340	Re: What rear ends will fit a 72 Thank you.

06-09-2014, 08:08 AM	#4
Sklptrljay Registered User Join Date: Apr 2012 Location: Stillwater, Oklahoma Posts: 874	Re: What rear ends will fit a 72 The 67 through early 70 rear ends will fit, but they are a little narrower and are 6 lug. They do make 5 lug axles that can be swapped in. You can also use later model truck rear ends that have 5 lug patterns, but if you have coil springs you would have to weld perches on. __________________ 1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy

06-09-2014, 03:31 PM	#5
bonnieclyde100 Registered User Join Date: Jan 2012 Location: Henderson,TX Posts: 336	Re: What rear ends will fit a 72 why dont you just change the ring and pinion?

06-09-2014, 04:22 PM	#8
Tinkermc Registered User Join Date: Jul 2011 Location: Farmville, Va Posts: 3,026	Re: What rear ends will fit a 72 67-68 allow you to have extra room for tubs and larger tires, just my 2cents. NO CHARGE !!!!

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