Rear Diff Rebuild

B

big gear head

axle builder
Re: Rear Diff Rebuild

There are some bolt in 8.5 rear ends that were used in some of the 4X4 S series trucks. I think the ZR2 rear end will work. This has been covered several times on this sight. Do a search and you will come up with lots of informatin on it. Just be sure that you get one with the same gear ratio as the front or you will have major problems. All of the SyTy trucks had 3.42 gears as far as I know.

If you are interested in a bolt in 12 bolt Moser rear end send me an email. I've done several of these.
 
jjorgensen52

jjorgensen52

NHSTE - I'm the only one!
Re: Rear Diff Rebuild

big gear head said:
There are some bolt in 8.5 rear ends that were used in some of the 4X4 S series trucks. I think the ZR2 rear end will work. This has been covered several times on this sight. Do a search and you will come up with lots of informatin on it. Just be sure that you get one with the same gear ratio as the front or you will have major problems. All of the SyTy trucks had 3.42 gears as far as I know.

If you are interested in a bolt in 12 bolt Moser rear end send me an email. I've done several of these.
Click to expand...

The ZR2 rear end will not work... it is overslung, not underslung, if memory serves. I know it will not work though
 
warmpancakes

warmpancakes

New member
Re: Rear Diff Rebuild

big gear head said:
There are some bolt in 8.5 rear ends that were used in some of the 4X4 S series trucks. I think the ZR2 rear end will work. This has been covered several times on this sight. Do a search and you will come up with lots of informatin on it. Just be sure that you get one with the same gear ratio as the front or you will have major problems. All of the SyTy trucks had 3.42 gears as far as I know.

If you are interested in a bolt in 12 bolt Moser rear end send me an email. I've done several of these.
Click to expand...


Zr2 is too wide, for a syclone you need a 4x4 s-series with a manual trans. Godd luck I have found 2 in the last 5 years and one is still in the truck
 
warmpancakes

warmpancakes

New member
Re: Rear Diff Rebuild

midnightbluS10 said:
You make them sound rarer than SyTy's and we all know that's not the case.
Click to expand...

From what Ive seen they are less then .05% of the s-series pickups were 4x4 and manual trans non zr2
 
canadian

canadian

sy in progress
Re: Rear Diff Rebuild

What about:

4X4, w/o ZR2 opt; 8-1/2" ring gear, 3.42:1.

Does anybody have the code for the correct rear end? Like GU6?
 
warmpancakes

warmpancakes

New member
Re: Rear Diff Rebuild

canadian said:
What about:

4X4, w/o ZR2 opt; 8-1/2" ring gear, 3.42:1.

Does anybody have the code for the correct rear end? Like GU6?
Click to expand...

Thats the one , its only behind a manual trans with a 4.3
 
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