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09-07-2009, 06:39 PM
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#1 |
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Registered User
Join Date: Aug 2009
Location: Hamilton, Ontario
Posts: 41
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Rear end options...
The search function refuses to work today for some reason, so heres my question. I'm looking to get rid of the open diff in my truck, but am having trouble finding resources to give me any info on this. What I'm looking for is what trucks came stock with posi/limited slip rear ends, how I can identify this, what rear ends are compatible in my truck (1981 running gear) and what gears I should be looking at running to work the best with my set-up (sbc, TH350, 275/60R15 tires) or would it just be best to have my current rearend rebuilt with a posi/limited slip. I've not yet identified whats in my truck, but it has a 12-bolt cover.
Once again, if search would work, I'd use it. Any help is appreciated.
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'75/'81 Chevy C-10 project... Hitting the streets Spring '10.... Cardomain Page http://www.cardomain.com/ride/3371894 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=357953 |
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09-07-2009, 06:51 PM
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#2 |
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Superbad
Join Date: Mar 2007
Location: Pittsburg, CA
Posts: 153
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Re: Rear end options...
If you've already gotta 12 bolt I'd rebuild it with an Auburn posi unit & some 3.08 or 3.42 gears with those 275/60-15s. If you plan to install a 700R4 later down the road I'd step up to 3.73 or 4.10 gears.
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09-07-2009, 07:42 PM
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#3 |
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Registered User
Join Date: Aug 2009
Location: Hamilton, Ontario
Posts: 41
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Re: Rear end options...
I'd like to eventually be running a 700r4. Been looking around at bowtieoverdrives.com at my options...
__________________
'75/'81 Chevy C-10 project... Hitting the streets Spring '10.... Cardomain Page http://www.cardomain.com/ride/3371894 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=357953 |
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09-07-2009, 07:57 PM
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#4 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Rear end options...
A posi-traction/limited-slip differential is a "option" available to any truck, so there isn't any one specific model where you would find it.
If you are happy with the ratio that you already have, I would have the differential added to what you have. If you are going to an overdrive, I would do both at the same time. The better gearing for the OD would be too low for your TH350.
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Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
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09-07-2009, 08:04 PM
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#5 |
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Dually Pride
Join Date: Jun 2008
Location: NH
Posts: 540
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Re: Rear end options...
power trax, cheap and no special tools needed
http://www.summitracing.com/parts/PWT-1910-LR/
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If I have to explain, you wouldn't understand. '74 Chevy C-30 350/4 speed/dually  '94 Ford Ranger |
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