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Old 11-25-2005, 04:11 PM   #1
Buckman
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gears in rear end?

Is there a place that I can go to where I can type in my vin # and it will tell me every thing about my truck when it was new? I'm trying to see what gears are in the rear end.
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Old 11-25-2005, 04:13 PM   #2
phantom dually
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Re: gears in rear end?

It will be a build code in the glove box. Example a G80 is a posi code.
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448
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Old 11-25-2005, 04:25 PM   #3
Buckman
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Re: gears in rear end?

phantom dually, I have part of the build sheet but what I whould like to know is there a site that will tell me the information from the vin #.
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Old 11-25-2005, 04:40 PM   #4
4tiresngas
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Re: gears in rear end?

Here's a link to the VIN decoder, but it will not tell you what rearend you have:

http://www.67-72chevytrucks.com/Chevyear.html
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Old 11-25-2005, 04:45 PM   #5
phantom dually
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Re: gears in rear end?

What Yr Truck
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448
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Old 11-25-2005, 04:50 PM   #6
Buckman
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Re: gears in rear end?

It's a 71 gmc swb with a 350 engine

Last edited by Buckman; 11-25-2005 at 04:51 PM.
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Old 11-25-2005, 04:55 PM   #7
Longhorn Man
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Re: gears in rear end?

what tranny?
if it is an auto, or 4 speed, and has not been messed with, and has no option listed in the spid label in the glove box...
then you should have a 3.07 gear.


Only way to know for sure is to pop the cover off, count the teeth off each gear, divide the number from the small into the large, and that is your real no questions asked no B.S. gear ratio.
Your oil is probably 20 years old and worthless anyways.
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Old 11-25-2005, 05:02 PM   #8
Buckman
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Re: gears in rear end?

It's a auto, so it looks like it has 3.07 gears, I wish it had smaller gears, I just had a 700r4 drop in. I'm thinking they will be to tall for every day driveing. Tks guys.
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