Yes, another Suburban. Can these things become an addiction?. - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

justcuz · 03-25-2010, 04:47 PM

14 bolt rears come in 2 flavors.

1. Heavy duty (6200 lb) full floating axles, 14 bolts hold the rear cover on and has a removable pinion carrier that has 6 bolts. Ring gear sets right of center.

2. Light duty(5000 lb) installed in heavy duty 1/2 ton 4wd and light duty 3/4 ton trucks 2wd and 4wd. Comes in square bodies in an 8 lug pattern and 88 and up in 6 or 8 lug. Has a 14 bolt rear cover, but no pinion carrier in front. Ring gear sets left of center.

The design of the carriers allow for the distinctive ring gear placement of these 2 axles.
The semi-float cover is rounder than the full float cover which is more angular.

I'll post up pictures.
1. 14 bolt Full Float rear cover
2. 14 bolt FF axle and hub
3. 14 bolt Semi Float rear cover
4. 14 bolt SF rear brakes
5. 14 bolt SF 6 lug

The 4 wheel drive six and eight lug rear Semi Float axles are close to the same width WMS to WMS (wheel mounting surface) as the front axles (which are normally wider than the rear) if you get it from the 88 and up body style. Not sure of the spring perch measurement though.

sailed2japan · 03-26-2010, 12:01 AM

If I remeber correctly the spring perches are different widths on on a 88-98 vs 73-87. I know there are a few different set-ups on the 88-98. It's weird, but I think the 2wd, 4wd, and burbs all had slightly different axles.

padresag · 03-26-2010, 02:08 AM

Quote:

Originally Posted by sailed2japan

If I remeber correctly the spring perches are different widths on on a 88-98 vs 73-87. I know there are a few different set-ups on the 88-98. It's weird, but I think the 2wd, 4wd, and burbs all had slightly different axles.

suburbans didn't change at 87 but continued with the same axles till 91 and crewcabs also
ron

justcuz · 03-26-2010, 11:46 AM

Yep the 88-98 4wd rear axles are about 3 inches wider overall than a 2wd.
That's why they match up closely with the 4wd solid front axles.
Prior to 88 on trucks and 92 on Subs,Blazers and Crewcabs (1ton) the rear axles were all the same width if I recall correctly.

03-25-2010, 04:47 PM	#26
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: Yes, another Suburban. Can these things become an addiction?. 14 bolt rears come in 2 flavors. 1. Heavy duty (6200 lb) full floating axles, 14 bolts hold the rear cover on and has a removable pinion carrier that has 6 bolts. Ring gear sets right of center. 2. Light duty(5000 lb) installed in heavy duty 1/2 ton 4wd and light duty 3/4 ton trucks 2wd and 4wd. Comes in square bodies in an 8 lug pattern and 88 and up in 6 or 8 lug. Has a 14 bolt rear cover, but no pinion carrier in front. Ring gear sets left of center. The design of the carriers allow for the distinctive ring gear placement of these 2 axles. The semi-float cover is rounder than the full float cover which is more angular. I'll post up pictures. 1. 14 bolt Full Float rear cover 2. 14 bolt FF axle and hub 3. 14 bolt Semi Float rear cover 4. 14 bolt SF rear brakes 5. 14 bolt SF 6 lug The 4 wheel drive six and eight lug rear Semi Float axles are close to the same width WMS to WMS (wheel mounting surface) as the front axles (which are normally wider than the rear) if you get it from the 88 and up body style. Not sure of the spring perch measurement though. Attached Images Last edited by justcuz; 03-25-2010 at 04:58 PM.

03-26-2010, 12:01 AM	#27
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: Yes, another Suburban. Can these things become an addiction?. If I remeber correctly the spring perches are different widths on on a 88-98 vs 73-87. I know there are a few different set-ups on the 88-98. It's weird, but I think the 2wd, 4wd, and burbs all had slightly different axles. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

03-26-2010, 11:46 AM	#29
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: Yes, another Suburban. Can these things become an addiction?. Yep the 88-98 4wd rear axles are about 3 inches wider overall than a 2wd. That's why they match up closely with the 4wd solid front axles. Prior to 88 on trucks and 92 on Subs,Blazers and Crewcabs (1ton) the rear axles were all the same width if I recall correctly.

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