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Old 02-18-2006, 02:42 PM
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S-10 chevy rear end

I am looking for a stout rear end to install in a 85 S-10 with a small block and a built 700R4.The 7.8 is not gonna get it too much longer.Anybody got any suggestions? Need brake info too if anyone knows! Really don't want to tub or back halve if I don't need it as this is gonna be a street car for my 16 year old.

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Old 02-18-2006, 07:12 PM
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Look to the later S10s. They had the 8.5" rear with discs. I think the frames are the same, so it should be a bolt-in
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Old 02-18-2006, 07:26 PM
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The later 8.5's are a direct swap for bolting in, BUT, the widths are not the same.

I've seen that any S-series with the RPO ZR2 has the 8.5, these are a huge step up from the 7.625.
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Old 02-19-2006, 09:33 AM
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Thanks for the info guys. I will look into a later model rear after taking some measurements of what I have.
Does anyone know a place to get build codes for this? It would make life easier if I know exactly what to ask for. Thanks in advance!
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Old 02-19-2006, 11:02 PM
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Some common options
1) Ford 9"...you can even get a brand new one ready to bolt in if you want to pay for it
2) Ford 8.8" Can be had with disc brakes & 31-spline axles...you just have to change the bolt pattern and it will be a bit too wide.
3) S10 8.5" 10-bolt (what I did)
They came in 96-up p/u's and Blazers. If you want it the same width you will need to get one from a 2wd. 4wd axles are 4" wider than 2wd and the ZR2's are another 4" wider than the 4wd. What you need to get one from a 96+ 2wd with 4.3L H.O. V8 and a stick. If you want disc brakes get it from a 98-up Blazer.

As long as you get the 2wd axle will be same width as you have now. For me it wasn't a direct bolt in because I had to have my drive shaft shortened by about 1".
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Old 02-20-2006, 02:01 AM
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The 8.8 is a darn near drop in and go swap from an Explorer.
Clicky HERE for the Explorer axle swap info.
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Old 02-20-2006, 10:52 AM
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And the 8.8 came with discs for many years. Its also pretty stout... its more or less a copy of a GM 12-bolt.
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Old 02-20-2006, 11:56 AM
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Quote:
Originally Posted by curtis73
And the 8.8 came with discs for many years. Its also pretty stout... its more or less a copy of a GM 12-bolt.
From 95+ for disk brakes.
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Old 02-20-2006, 12:12 PM
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Quote:
Originally Posted by M&M CUSTOM
The 8.8 is a darn near drop in and go swap from an Explorer.
Clicky HERE for the Explorer axle swap info.
Thanks for linking my write-up


The 8.8 is a great rear to use. I've put it into action at the track this season with my 350 S-10 and it's doing great. The only real drawback I see is that because it is a decent bit wider you need to find some large backspaced wheels to run wide tires, but I was able to find some 6"BS 10 inch wheels to mount my 10in slicks on which set them in to a pretty good position. Check out my write-up linked above and you will have a good idea of what to expect.
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