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boneyard rear dif for s-10

3K views 16 replies 5 participants last post by  s-10again! 
#1 ·
im looking for a rear end with a 3.08 to 1 ratio or maybe even less, rear differential for an s-10. does anybody know of vehicles with any narrow rear differential that had that gear that i should be scouring the bone yard for? it has to hold up to mild sbc build.
 
#3 ·
If this is a 2 wheel drive S10 and you need something stronger than the 7.5 rear end then your only choice is a rear end from a 2 wheel drive with the 4.3 and a 5 speed. Some of them got the 8.5 rear end, but they are kind of rare. There is no other production rear end that is as narrow as this, so looking for something else would be a waste of time.
 
#5 ·
Frank with an S-10 rear end.

I think I have one for $200 that did come out of an S-10. You would have to rebuild the brakes.I believe I have a second one that I was going to put under a '32 Chev I have, but the S=10 is actually too narrow for the '32 and I have another 10 bolt that is just right for the'32.One S-10 has the spring pads cut off. your choice. frankdelrees@aol.com.
 
#8 ·
I wonder why those guys go to all of the trouble to modify the Explorer rear ends when the Ranger rear end would be so much easier. I know that the Ranger has some pinion offset because they have a long and a short axle too. The Ranger short axle is the same length as the FOX mustang axles.
 
#11 ·
All of the GM trucks with the limited slip G80 differential got the Governor Lock differential. This thing is so weak that they are only good for a stock truck with stock tires, and then they still break. Usually the gear on the governor is all that breaks, which makes it work like a standard differential. Upgrading to the Eaton Posi is the way to go for a high performance GM truck.
 
#13 ·
Put in a new Eaton Posi and new bearings. If you have a '89 or older rear end then it will have 26 spline axles. You can upgrade it to 28 spline axles, which is what I recommend. If you have a '90 or later then it should already have the 28 spline axles. This is assuming that you have the 7.5 rear end.
 
#15 ·
thank you for the replys. Would a reaf diff from a 4X4 99 blazer work well? I have one. my dad has a 2002 s-10 and it has had many rear dif problems and a bunch of the bearings and seals which constantly go bad, are mitsubishi parts. i want to stay away from that.
 
#17 ·
thanx for the info. I would prefer to build something up fresh and reliable. Drivetrains going to be powered by a stocker 305 for a short time while i set up a 355 vortec engine. the drive system in this truck will hopefully sonner than later see some somewhat respectable torque numbers. rather build the drive train up right one time.
 
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