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10-11-2010, 11:49 AM
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rear end identification S10
I am building a 32 Chevy. It is going on an S10 frame, that will be drastically modified. It will be powered by an LS1 engine removed with tranny connected from a low mileage 96 vette.
The S10 is a 91 shortbed 2wd that had a 2.5 in it. The VIN is still attached but I am not in the shop right now, so if it will help let me know and I will copy it down. I have heard that some of the S10's came with a 10 bolt posi. What do I look for to tell me what it is? 
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10-11-2010, 07:03 PM
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This will be the small weak 7.5 10 bolt. I recommend you find a later rear end from a 2 wheel drive 4.3 5 speed truck with the 8.5 10 bolt. This is a much stronger rear end.
The only limited slip differential that the S trucks had was the Governbor Lock. They work all right in a stock truck, but don't last very long in a high performance situation.
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10-11-2010, 09:48 PM
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thanks for the identification
Is the 8.5 the same width? If I am going to have to cut it down would a 12 bolt be any better for my application?
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10-12-2010, 12:26 PM
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If you get the 2 wheel drive 8.5 from a 4.3 5 speed truck it will be the same width. The 4X4 rear end is about 4 inches wider.
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