Rear end widths, worth keeping? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CG · 11-21-2018, 09:12 AM

Slowly but surely thinning the herd and parts stash (where does all this stuff come from haha!).

I'm down to three extra rolling chassis that I'm ready to say goodbye to, and while chances are slim Ill ever need them, I'm thinking about keeping the rear ends. I have no idea what the gearing is in any of them (all C10's). The 67 and 69 were both V8 trucks with factory overdrive trans (all that stuff is long gone). The 68 was a V8 auto truck. The 67 and the 68 are trailing arm. The 69, although a Chevy, is a leaf spring truck.

Not 100% sure on widths, but aren't the 67 and 68 a little narrower? Do these have value over the wider rears? If so at the very least I could sell them down the road.

Mike C · 11-21-2018, 09:52 AM

67-69 is one width, and 70-72 is wider. With the caveat that some early 70’s may be late 69’s...

Personally, I don’t get rid of any hard parts, but family property means I can store as much as I have.

I would want to know for sure what gears and whether they were limited slips before I got rid of them. (But I wouldn’t get rid of them. LOL)

**special-K** · 11-21-2018, 09:58 AM

Both are equally worth keeping. While the 5-lug disc brake crowd 71/72 will want the late rears the Stepside, stay original, stay 6-lug disc or drum crowd would be wanting the early ones.

Bones72Super · 11-21-2018, 10:05 AM

If the fill plug is a square protrusion it is a open rear end, if the fill plug is round with square recessed that sticks out from the body of the rear end housing it should be a posi. Ever since someone pass this information to me about 2 years ago every rear end that I have checked has rang true with this statement

57larry · 11-21-2018, 03:01 PM

thanks Bones, did not know that, but it's true on my rear

11-21-2018, 09:12 AM	#1
CG BlahBlahBlah Join Date: Feb 2002 Location: Monroe, Wa. Posts: 19,773	Rear end widths, worth keeping? Slowly but surely thinning the herd and parts stash (where does all this stuff come from haha!). I'm down to three extra rolling chassis that I'm ready to say goodbye to, and while chances are slim Ill ever need them, I'm thinking about keeping the rear ends. I have no idea what the gearing is in any of them (all C10's). The 67 and 69 were both V8 trucks with factory overdrive trans (all that stuff is long gone). The 68 was a V8 auto truck. The 67 and the 68 are trailing arm. The 69, although a Chevy, is a leaf spring truck. Not 100% sure on widths, but aren't the 67 and 68 a little narrower? Do these have value over the wider rears? If so at the very least I could sell them down the road.

11-21-2018, 09:52 AM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Rear end widths, worth keeping? 67-69 is one width, and 70-72 is wider. With the caveat that some early 70’s may be late 69’s... Personally, I don’t get rid of any hard parts, but family property means I can store as much as I have. I would want to know for sure what gears and whether they were limited slips before I got rid of them. (But I wouldn’t get rid of them. LOL) __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

11-21-2018, 09:58 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Rear end widths, worth keeping? Both are equally worth keeping. While the 5-lug disc brake crowd 71/72 will want the late rears the Stepside, stay original, stay 6-lug disc or drum crowd would be wanting the early ones. __________________ "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 ~

11-21-2018, 10:05 AM	#4
Bones72Super Registered User Join Date: Sep 2017 Location: Lake Travis,Texas Posts: 769	Re: Rear end widths, worth keeping? If the fill plug is a square protrusion it is a open rear end, if the fill plug is round with square recessed that sticks out from the body of the rear end housing it should be a posi. Ever since someone pass this information to me about 2 years ago every rear end that I have checked has rang true with this statement __________________ WTB 71-72 Original paint Medium Red hood WTB 1972 Very nice original Parchment seat belt set

11-21-2018, 03:01 PM	#5
57larry Registered User Join Date: Nov 2007 Location: Indianapolis Posts: 1,160	Re: Rear end widths, worth keeping? thanks Bones, did not know that, but it's true on my rear



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