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03-22-2008, 01:19 AM
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#1 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Rear end ID help
can anyone tell me what this rear end is? Heres some info its in a 79 short bed C10 the only numbers I found are 3723199 and 23258 any help will be great I need to know what it is so I can change the gear ratio it has after market 4.11s and I want to go to 3.08s
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03-22-2008, 01:28 AM
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#2 |
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Registered User
Join Date: Sep 2006
Location: New Haven, MO
Posts: 1,243
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Re: Rear end ID help
how many bolts are on the differential cover?
__________________
-Lincoln 1987 GMC S15 (soon to be a chevy clone)  2.5l, 4 speed, no ps, no pb, no ac Silence is golden, but duct tape is silver.  Spoken by Cletus the hillbilly I like stickers... a whole bunch. |
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03-22-2008, 01:49 AM
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#3 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Re: Rear end ID help
12
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03-22-2008, 01:59 AM
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#4 |
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Registered User
Join Date: Sep 2006
Location: New Haven, MO
Posts: 1,243
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Re: Rear end ID help
its a truck 12 bolt then.
__________________
-Lincoln 1987 GMC S15 (soon to be a chevy clone) 2.5l, 4 speed, no ps, no pb, no ac Silence is golden, but duct tape is silver. Spoken by Cletus the hillbilly I like stickers... a whole bunch. |
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03-22-2008, 02:01 AM
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#5 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Re: Rear end ID help
so nothing special like a 8 3/4 or 8 1/2, 12 bolt
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03-22-2008, 02:31 AM
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#6 |
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Registered User
Join Date: Sep 2006
Location: New Haven, MO
Posts: 1,243
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Re: Rear end ID help
Probably not
__________________
-Lincoln 1987 GMC S15 (soon to be a chevy clone) 2.5l, 4 speed, no ps, no pb, no ac Silence is golden, but duct tape is silver. Spoken by Cletus the hillbilly I like stickers... a whole bunch. |
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03-22-2008, 03:53 PM
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#7 |
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One shot, one kill.
Join Date: Dec 2007
Location: Saratoga Springs NY
Posts: 859
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Re: Rear end ID help
JDS: Get numbers off the top of the right hand axel tube.That will give you all the info you need, except that the ratio has been changed.If your going to go from 4 series gears to 3 series gears your going to need a new case UNLESS there is a spacer between the ring gear and case now. Just leave out the spacer to change to 3 series. Jim
__________________
1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shot Jim or Paladin whichever you choose.
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03-29-2008, 03:00 AM
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#8 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Re: Rear end ID help
Well it turned out to be a dodge 12 bolt so the score is 0 forum, 1 morons LOL man am I mad ordered gears and the install kit just to have my garage tell me its a dodge rear end.
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03-29-2008, 03:14 AM
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#9 |
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Registered User
Join Date: Sep 2006
Location: New Haven, MO
Posts: 1,243
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Re: Rear end ID help
that suxx sorry dude
__________________
-Lincoln 1987 GMC S15 (soon to be a chevy clone) 2.5l, 4 speed, no ps, no pb, no ac Silence is golden, but duct tape is silver. Spoken by Cletus the hillbilly I like stickers... a whole bunch. |
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03-29-2008, 03:48 AM
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#10 |
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Registered User
Join Date: Jan 2008
Location: Fort Campbell KY
Posts: 271
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Re: Rear end ID help
I said screw it and bought a whole new rear end
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