rear end swaps

[J Knight]

Originally Posted by Devillusion

what is the WMS on that rear end?

Originally Posted by '82 steppin

What is WMS means?
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He wants to know the wheel mount surface(WMS) to wheel mount surface measurement.
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[Firebirdjones]

never seen that abreviated before.

[Devillusion]

Wheel Mating Surface.........looking for WMS to WMS measurement

[motornut]

my 79 4X2 has a 12 bolt locker it's RPO 1G80 if you see that one

[Firebirdjones]

Officially called the ALD (automatic locking differential) according to GM.

It's come to be known as the "gov bomb" among the general population though

[INSIDIOUS '86]

Originally Posted by dgreen

87 1/2 ton 10 bolt / 5 lug

please list direct swaps that will bolt right in (burb,blazers/ c10-20)
also spilnes

looking to find something with better then 2.73 gears.
there is a 10 bolt 5 lug from a 86 at my local pick and pull but its got 3.08 gears i dont think it will be worth it.

thanks

2:73 to 308 is a pretty good jump. Did that on my truck and was happy with the change. Usually suburbans and such have better gearing in them
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[wraprail]

Originally Posted by gchemist

You can find a Caddy or Lincoln 5X5 disc rear end too. Just weld new perches and mount.

1979 Lincoln MarkV Ford 9 inch 5X5 Disc Brakes Even the factory sway bar lines up. Ads stated, cut off the mounts and weld new spring perchs on. Gear changes are easy.
Parking brake is an easy hook up.

[RPOZ11]

My 10-Bolt swap from a 1985 1/2 ton into a 1975 SWB Fleet C/10 :
10 Bolt 8.5 Truck rear axle.
2:56.1 8.5 ring & pinion.
2-series Eaton Posi.
Moser Axles : Brand New.
New drums, shoes, wheel cylinders, spring kits, bearings, seals, crush sleeve, 1350 U-Joint Heavy Duty Pinion Flange.

Some of the small bolts were metric, others not; just fyi.
Do note that we had to change the parking brake cables from the prior 12-Bolt into the 10-Bolt backing plates.
The 1985 parking brake cables were longer than the stock ones from the 12-Bolt that were correct length for a SWB.

[Devillusion]

Originally Posted by wraprail

1979 Lincoln MarkV Ford 9 inch 5X5 Disc Brakes Even the factory sway bar lines up. Ads stated, cut off the mounts and weld new spring perchs on. Gear changes are easy.
Parking brake is an easy hook up.

A Ford differential that is 5x5?????? really?

[wraprail]

Originally Posted by Devillusion

A Ford differential that is 5x5?????? really?

Sure, all your big ford cars as well as linclon and mercury from the 70s & 80s are 5X5 bolt pattern. (some mid 70s F100 &F150 pickups are 5X5 also) and the
center hole is the same as GM. I use factory 15X8 GM truck rally wheels
on my ford (Linclon) 9 inch.
This one was in my 73 C10 SWB for over 10 years and 60,000 miles
3.70 gear, 28 spline with a trac-loc diff.

[IMG][/IMG]

[MyC-Dime]

Wraprail, Any perticular vehicle to look for for a posi, and are the widths the same for 85 chevy thanx

[wraprail]

I would assume that an 85 C10 would be the same width as a 73 but I don't know for sure. As for the posi/locker, i just check pick-a-part in the truck section. In the case of a 9 inch, I usually look at Bronco and F150 4x4s. Often they have an ID tag that shows the gear ratio. If both tires spin together in the same direction that usually indacates a posi or locker. You have to pull it to be sure and to check if you have a 28 or 31 spline.
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[gchemist]

Sweet 9"!! Nice upgrade!