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04-02-2016, 09:32 AM
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#1 |
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Senior Member
 
Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,798
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42 rear diff change --s10 frame
I am running a 350 sbc with a 700r4 with lockup and had a 3.08 gear in it. When the OD kicks in at 50 mph rpms would drop to about 1200 so I changed the whole rear diff to a 3.73 out of a 92 4 wd pickup.
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04-04-2016, 01:32 PM
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#2 |
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Registered User
Join Date: Sep 2012
Location: Oregon
Posts: 3,303
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Re: 42 rear diff change --s10 frame
I have found that 3:73 is the perfect ratio when doing a 700r4 or 2004r swap.
__________________
GOD BLESS AMERICA! |
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04-04-2016, 04:00 PM
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#3 |
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Senior Member
Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,798
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Re: 42 rear diff change --s10 frame
cool
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04-05-2016, 07:25 AM
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#4 |
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Registered User
Join Date: Oct 2014
Location: Hanover PA
Posts: 59
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Re: 42 rear diff change --s10 frame
A 3:73 swap is a great choice especially if your SBC has a performance cam that has very little torque at low RPMs. Looks good!
__________________
46 Chevy Pickup (project) 60 Chevy Biscayne 93 Caprice wagon(Impala SS style) 99 Corvette convertible 2014 Silverado 2500HD 92 Chevy 1500 (Shop/plow truck) 02 Silverwing 05 H-D Springer Classic 2011 Civic (Wifes car) 03 Highlander (beater) 96 Honda Elite 80 |
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04-05-2016, 08:04 AM
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#5 |
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Senior Member
Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,798
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Re: 42 rear diff change --s10 frame
The 350 sbc is a GM crate engine 8.5 compression with a 268 Comp Cam, Edelbrock 600, and the s10 conversion headers with 2 1/4 exhaust with and H pipe.
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