| | OEM Differentials |  |
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stockfornow
Posts : 374
Join date : 2009-01-06
Location : Spencerport, NY
| Subject: OEM Differentials  Tue Dec 01, 2009 7:11 pm | |
| Found these at a surplus store. Good price? What else will I need to put in a non posi wagon?
Differential R Chevy Buick YEAR YEAR MAKE MODEL
Part #: 12369496 1991 1993 Buick Roadmaster :
Weight=21 1991 1993 Buick Estate Wagon :
1991 1993 Chevrolet Impala :
1991 1993 Chevrolet Caprice :
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COMMENTS: Differential
This is a Brand NEW, Genuine GM, rear Differential. This is a posi-traction (limited slip) 3.08 gear ratio differential. The GM OEM part number is 12369496. Retail on this differential is about $993.35. It fits the following Vehicles:
Buick
1991 – 1993 Roadmaster Sedan
1991 – 1993 Estate Wagon
Chevrolet
1991 – 1993 Caprice
1991 – 1993 Impala Super Sport
This will also fit some 94, 95, & 96 models.
L-Code: 15xyz..... Retail Price: $993.35
YOUR PRICE: $224.99
Individual S/H: $18.88 | |
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jayoldschool
Posts : 2728
Join date : 2009-06-14
| | Subject: Re: OEM Differentials Tue Dec 01, 2009 7:41 pm | |
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sherlock9c1
Posts : 2399
Join date : 2009-05-28
Location : Huntsville, AL
| | Subject: Re: OEM Differentials Tue Dec 01, 2009 9:05 pm | |
| It is such a pain in the butt to mess around inside the rear axle that I would never put a stock differential back in, even at that price. For $75 cheaper I'd consider it. | |
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stockfornow
Posts : 374
Join date : 2009-01-06
Location : Spencerport, NY
| | Subject: Re: OEM Differentials Tue Dec 01, 2009 9:24 pm | |
| - jayoldschool wrote:
- Well, they are charging 250 in this ad...
I think it is because they are offering 10% off this week..... | |
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lakeffect
Posts : 3892
Join date : 2009-08-18
Location : Rochester NY 14621
| | Subject: Re: OEM Differentials Wed Dec 02, 2009 7:36 pm | |
| There was an article about limited slip diffys in Car Craft this month. It was indicating that Dana/Spicer diffys had the better ability to deal with over 400 horsepower, others barely 300HP. I'd like to drop a posi and new gears into Shammoo over the winter.
Any thoughts out there on your own experiences?
Does a wagon require different specifications than an Impala or Caprice sedan? I'm thinking Spline counts here. | |
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sherlock9c1
Posts : 2399
Join date : 2009-05-28
Location : Huntsville, AL
| | Subject: Re: OEM Differentials Wed Dec 02, 2009 10:27 pm | |
| Differentials are the same between sedans and wagons, but be careful of the gear ratio; 2.73s and down got a thinner differential carrier; 2.93s and up got a thicker one to account for the smaller ring gear. 30 splines on the axles. | |
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lakeffect
Posts : 3892
Join date : 2009-08-18
Location : Rochester NY 14621
| | Subject: Re: OEM Differentials Thu Dec 03, 2009 7:44 pm | |
| So currently I have stock set of non-posi 3.05s in Shammoo. I have a set of 3.43's I went to throw in at the same time I do the posi, but and concerned about the ABS reluctor not being there.
Thoughts on salvaged (used) posi's versus the big buck new items?
Last edited by lakeffect on Sat Aug 28, 2010 11:01 am; edited 2 times in total | |
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sherlock9c1
Posts : 2399
Join date : 2009-05-28
Location : Huntsville, AL
| | Subject: Re: OEM Differentials Thu Dec 03, 2009 9:16 pm | |
| If they're free or nearly free, I'd think about them. The challenge is do you really know they actually still work? There are also several flavors. The Auburn cone-type is okay if it's nearly free. The GM "gov-lock" posi that came in trucks requires wheelspin to engage the mechanism. It's really designed for mud and snow and doesn't hold up well if the slip happens on a grippy surface like asphalt.
That's what I know. I'm sure others know more. | |
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