regular 10 bolt rear vs 4wd 10 bolt rear ?????

[paintman]

Hey guys! I am looking at 2 rear ends on CL for my next project. Is there any difference between a regular 10 bolt rear out of a car and a 10 bolt 4wd out of a Blazer? Supposedly the car rear is 60" wide and the Blazer is 59".

But I guess my biggest concern is are the bolt in parts the same or are the housings different? I plan to cut off the perches so that's no big deal but both of them would need a different ratio for what I am doing. I just wanted to make sure the guts are the same. Thanks guys!

I also Know of an Explorer rear with the right 3:73 ring and pinion and posi that would fit, I just don't like how the pinion is offset. Damn, anaylsis is paralysis!

[dsraven]

the explorer diff info is here, partly, but the centered pumpkin 8.8 diff is from a mustang I think mid 90's?, if you are looking for a centered pumpkin instead of offset. below is a few copy/paste items from google. take them for what they are.

Ford Explorer 8.8 axles come with 31 spline axle shafts, most have Traction Lok/LSD and 1995+ have disk brakes. They have the following dimensions:

Wheel mounting to wheel mounting surface width: 59.5"
Drivers side axle shaft length: 30.688"
Passenger side axle shaft length: 27.813"
Axle shaft length difference: 2.875"

They come in 3.27, 3.55, 3.73 and 4.10 final gear ratio with tons of aftermarket R&Ps for just about any application.
Superior axle offers a kit that would allow you to eliminate the c-clips. You would have to install a 4 bolt bearing retainer on the ends of the axle tubes to retain the shafts.

Any 8.8 out of a v8 all wheel drive explorer/mountaineer will have the gear ratio of 4.10, and have factory limited slip.

If I'm not mistaken, 99 and up will have disc brakes, below that will be drum.

Bolt pattern of the 8.8 if 5x4.5 inches.

The weakest links are the plug welds that hold the tubes to the center section, easy fix if your experienced with welding cast center section to axle tubes. But we are talking high horsepower and hard launches.



http://www.therangerstation.com/tech...ex-axles.shtml

https://lmr.com/products/mustang-axle-guide

http://www.hotrod.com/articles/ford-8-8-rear-end/

[dsraven]

another from the hotrod network

http://www.hotrod.com/articles/ford-rear-axle/

[dsraven]

another forum read with some good but unverified info

http://www.moddedmustangs.com/forums...surements.html

[dsraven]

sounds like you could find a ford 8.8 with a centered pinion from a mustang that would fit your application.

[dsraven]

last one

http://www.toonutsracing.com/smf/index.php?topic=2121.0

[NorCalGal]

I used the explorer 8.8 with 3:73 post and disc brakes.
The GM 10 bolt comes in a 7.5 8.2 or 8.5

[bobinbc]

The blazer rear is 7.5" ring gear. Fine for a cruiser.

The 60" 10bolt from a car could be early Camaro/firebird 67-8-9 or early chevelle up to 67 (no pads on it for leaf springs) this would be 8.2" ring gear. Will handle up to 300 hp in a street car easily.

OR

it could be a 70-75 Nova or similar which would be 8.2 or 8.5 depending on the year. Strong enough for nearly any street engine if you don't abuse it at the track with slicks.

Either diff will work well and allow you to run deeper dish wheels if that is your goal. I would be more interested in what the ratios are, are they posi and how much slop is in the ring/pinion and how are the bearings?

Sorry short answer no the guts are not the same, don't know of a 60" 7.5 rearend from a car. But pics would help...

[mr48chev]

Why waste money buying a rear axle that doesn't have the right gears for what you want to do or one that is a chore to swap gears in? Either the car 10 bolt or S-10 10 bolt would have to be pretty close to free to make buying it and then turning around and swapping gears to make it viable. A bit of hunting will probably turn up a rear with the gears you want and a posi/limited slip to boot for maybe a few bucks more than either of those rear axles.

[paintman]

Originally Posted by mr48chev

Why waste money buying a rear axle that doesn't have the right gears for what you want to do or one that is a chore to swap gears in? Either the car 10 bolt or S-10 10 bolt would have to be pretty close to free to make buying it and then turning around and swapping gears to make it viable.

Thats what I was thinking. Both the 10 bolt and s10 rears are 3.08's. I can get either rear for $150. Out here in NJ theres not much to be had as most junk yards have closed and people on CL think their sittin on gold.

Not sure if 3.08 would work with the motor tranny combo I am using. warmed up 225 slant six with a 904 tranny.

[paintman]

This is the 10 bolt I am looking at............
https://allentown.craigslist.org/wan...329348882.html