? on rear ends - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cduster · 01-06-2005, 03:12 PM

Need a little help on this. Truck is a 72 GMC. I have a 67 and a 72 read end. I want to use the narrower 67 rear, but want to keep the 5x5 bolt pattern. Is there a factory 5x5 axel for the narrower rear end, or do I need to get an aftermarket set of axels?

If I need to go with aftermarket, do you guys have any suggestions?

As usual, any and all help is appreciated.

Thanks, Dan

sneakysnake · 01-06-2005, 03:47 PM

Inner axles wont interchange,(puts your brake shoes sticking out of the drums).
I would just use the 72 axle, the widths not that noticable you are only talking a few inches.If you are tubbing then get the width you really want.

crazy longhorn · 01-06-2005, 04:14 PM

^ what he said.....there is only about 1 1/4" difference in the axle assys (5/8" per side). unless you have major issues on width, & tire size, the 72-72 diff would be the ticket

you can get the axles through Moser, for around $260 a pair, with studs......crazyL

cduster · 01-06-2005, 05:37 PM

The tires I am going to be running are 29.5x 15.5 M/t Sportsman pro's. I have them on the truck now, and the outside of the tire I would like to get about another 1" of clearance on each side. (even 3/4" would be good.) The inside bed clearance really wouldn't be an issue, as I'll cut what needs to be cut. Right now I have about 3/4" (about a fingers width) between the tire and the bed.

As for brakes, I am converting to disc, so drums would not be a problem.

I dont think it shows too good in this picture, but maybe you can tell. The truck has coilovers, and when I lower the back down, outside clearance is a small issue. Just a little more room would be good.

I will try to get a better picture later. Thanks, Dan

Vince M · 01-06-2005, 09:21 PM

ECE also sells the replacement axles. I couldn't find a price in the catalog I have here but you can check their web page.

01-06-2005, 03:12 PM	#1
cduster Registered User Join Date: Oct 2002 Location: S.W. Michigan Posts: 403	? on rear ends Need a little help on this. Truck is a 72 GMC. I have a 67 and a 72 read end. I want to use the narrower 67 rear, but want to keep the 5x5 bolt pattern. Is there a factory 5x5 axel for the narrower rear end, or do I need to get an aftermarket set of axels? If I need to go with aftermarket, do you guys have any suggestions? As usual, any and all help is appreciated. Thanks, Dan

01-06-2005, 04:14 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	^ what he said.....there is only about 1 1/4" difference in the axle assys (5/8" per side). unless you have major issues on width, & tire size, the 72-72 diff would be the ticket you can get the axles through Moser, for around $260 a pair, with studs......crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

01-06-2005, 05:37 PM	#4
cduster Registered User Join Date: Oct 2002 Location: S.W. Michigan Posts: 403	The tires I am going to be running are 29.5x 15.5 M/t Sportsman pro's. I have them on the truck now, and the outside of the tire I would like to get about another 1" of clearance on each side. (even 3/4" would be good.) The inside bed clearance really wouldn't be an issue, as I'll cut what needs to be cut. Right now I have about 3/4" (about a fingers width) between the tire and the bed. As for brakes, I am converting to disc, so drums would not be a problem. I dont think it shows too good in this picture, but maybe you can tell. The truck has coilovers, and when I lower the back down, outside clearance is a small issue. Just a little more room would be good. I will try to get a better picture later. Thanks, Dan Last edited by cduster; 01-06-2005 at 05:40 PM.

01-06-2005, 09:21 PM	#5
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	ECE also sells the replacement axles. I couldn't find a price in the catalog I have here but you can check their web page. __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.

01-06-2005, 03:47 PM	#2
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Inner axles wont interchange,(puts your brake shoes sticking out of the drums). I would just use the 72 axle, the widths not that noticable you are only talking a few inches.If you are tubbing then get the width you really want.



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