rear end help. 73-87 88-99 99-06 widths

[stretch86]

I have a 86 c10 suburban  and the rear end is junk im rebuilding it as i go. I was wondering if anyone knows the width (wms-wms) of the 10b,12, 14b sf and 14b ff for each set of years. I know ill have to move modify spring perches and shock mounts. I know where i can get a 00 chevy 1500 rear end its a 8.6 10b with disc brakes and was wondering how much wider it is. Only thing ive found is that the 88-98 is wider then 73-87 years and the 99-06 is wider then 88-98. I also found out that the 2wd are narrower then the 4x4.

[zieg85]

Don't rule out full sized GM Caprice if you can do the welding.  I've heard they will work as well.

[stretch86]

I cant weld but know people that can its just i cant find a rear end for truck thats usable and bolts in

[zieg85]

I have one if your around Chicagoland, NW Indiana.  It is from a 86 C10 I parted out.

[blazer74]

You should have a 10b, you can measure,  12 bolt approx 63,  14sf 6 lug 2wd approx 65,  4wd    approx 68,             14sf 8lug ?,  14 ff ?


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[stretch86]

Are those widths for 73-87

[stretch86]

What id really like to know is how wide the 88-98 14b sf is both 2wd and 4x4 if anyone has one that they can measure

[blazer74]

What id really like to know is how wide the 88-98 14b sf is both 2wd and 4x4 if anyone has one that they can measure

that would be 65" for 2wd and 68" for 4wd. I have both and have measured them both wms to wms. You will need to move the spring perches to match yours.
You will want the 2wd version.


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[blazer74]

The 14sf also have 1350 u joints. You will need a conversion u joint and also I believe the 14 sf is about an inch longer at the yoke iirc, so you may or may not run in to drive shaft length trouble.


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[stretch86]

Ill be getting some measurements of mine. I was thinking about measuring yoke to axle center yesterday as i had almost forgot that itd be different. I know i have two drive shafts but does anyone know if the rear one on rear end is a slip shaft

[blazer74]

SF also has larger studs on the axles,  14 mm.


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[Stewart G Griffin]

How much are you willing to spend and how far are you from Pennsylvania?

[stretch86]

Im in nh

[Stewart G Griffin]

Well,
https://colemans.com/shop/military-vehicles/rear-axle-assembly-chevy-gmc-u-s-g-i/

Brand new!

[Stewart G Griffin]

BTW, i think there is one in Weare for $150.