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What rear gear do I have?

What rear gear do I have?

Postby fox4wd1981 [OP] » Oct 25 2011, 4:16pm

Is there any way to find out what rear end gears my truck has? I bought it used and have been curious of this.
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Re: What rear gear do I have?

Postby Z15 » Oct 25 2011, 4:28pm

Yes, look in the glove box for a option code label. All the axle codes begin with the letter G


G50 Springs, heavy-duty rear

G80 Differential, heavy-duty locking rear
G80 Differential, automatic locking rear
G80 Differential, heavy-duty automatic locking rear
G80 Differential, limited slip rear
G80 Differential, limited slip
G80 Differential, locking, heavy-duty, rear
G80 Differential, Zexel-torsen, limited-slip, rear
G80 Differential, automatic
G80 Rear Axle: Positraction
G80 Locking, Rear Axle
G80 Axle Positraction Limited Slip
G80 Differential, locking, rear
G85 Differential, limited slip
G86 Differential, limited slip
G86 Differential, limited slip, heavy-duty, rear
G94 Differential, full-locking rear
GAM Sales code, federal government
GAM Vehicle Government
GAT All-Terrain Package
GH0 3.54:1 Rear Axle Ratio
GK9 Rear Axle: 4.63 Ratio
GM8 Rear axle, 2.56 ratio
GMC Pontiac East Assembly
GMC Plant Code Pontiac, MI, USA
GND Ground Effects Package
GT4 Rear axle, 3.73 ratio
GT4 Rear Axle Ratio, 3.73
GT4 Rear Axle: 3.73 Ratio
GT4 3.73:1 Rear Axle Ratio
GT4 Axle Rear 3.73 Ratio (DUP With 5 x 1)
GT4 Axle ratio, 3.73
GT5 Rear axle, 4.10 ratio
GT5 Rear Axle: 4.10 Ratio
GT5 4.10:1 Rear Axle Ratio
GT5 Axle Rear 4.10 Ratio (DUP With GT8)
GTF G5 Appearance Package
GTY Rear axle, wide-track
GTY Axle Wide Track
GTY Wide Track Rear Axle
GU2 Rear axle, 2.73 ratio
GU4 Rear axle, 3.08 ratio
GU4 Rear Axle: 3.08 Ratio
GU4 3.08:1 Rear Axle Ratio
GU4 Axle Rear 3.08 Ratio
GU5 Rear axle, 3.23 ratio
GU5 Axle ratio, 3.23
GU6 Rear axle, 3.42 ratio
GU6 Rear Axle: 3.42 Ratio
GU6 3.42:1 Rear Axle Ratio
GU6 Axle Rear 3.42 Ratio
GU6 Axle, 3.42 ratio
GW1 Rear axle, 3.91 ratio
GW1 Axle ratio, 3.91
GW5 Axle, 3.16 ratio
GZV GVWR , 6411 lbs. (2908 kg)
GZW GVWR , 6459 lbs. (2930 kg)
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Re: What rear gear do I have?

Postby DRK4X4 » Oct 25 2011, 6:01pm

I was going to suggest entering your VIN # at www.compnine.com BUT I just checked it and they are shutting it down. Bummer, I liked using that site for vehicle info. :|
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What rear gear do I have?

Postby fox4wd1981 [OP] » Oct 25 2011, 6:20pm

Thanks for the info. Does anyone by chance know what GF0 code means?
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Combustion on 7 pistons [L2]
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Re: What rear gear do I have?

Postby DRK4X4 » Oct 25 2011, 6:26pm

GF0 is the "appearance package" according to what I found.
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Combustion on 5 pistons [L2]
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Extra Info: 4x4 2500 6.0L
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What rear gear do I have?

Postby fox4wd1981 [OP] » Oct 25 2011, 7:25pm

Cool deal. I appreciate all the help guys
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Combustion on 7 pistons [L2]
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Posts: 706
Topics: 58
Images: 5
Joined: May 20 2011, 12:41pm
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Location: Cleveland, OH
Year: 2008
Make/Model: Chevrolet Silverado
Extra Info: LT 5.3
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Registered users

Re: What rear gear do I have?

Postby Z15 » Oct 25 2011, 8:11pm

That's all I can pull up also, note is GF0 (zero)

Thought it would be interesting to show the rest that begin with GF

GF0 APPEARANCE PACKAGE EXTERIOR
GF1 FLEET INCENTIVE CABLE CONSTRUCTORS (U-TRK CK)
GF2 FLEET INCENTIVE AMERICAN PLUMBING & MECHANICAL (W-TRK CKGMLP)
GF3 FLEET INCENTIVE PHILIPS ELECTRONIC NORTH AMERICA CORPORATION (B/C/D/G/H/K/U/W-TRK CKGMLST)
GF4 FLEET INCENTIVE MORTGAGE GUARANTY INSURANCE (H/N/U/W-TRK GML)
GF5 FLEET INCENTIVE TELEFLEX INCORPORATED (C/K/N/W-TRK CKST)
GF6 FLEET INCENTIVE CLOROX CO. (N/U/W-TRK ST)
GF7 FLEET INCENTIVE COVAD COMMUNICATIONS CO. (TRK GMLST)
GF8 FLEET INCENTIVE DONTECH (N/W)
GF9 FLEET INCENTIVE GIBRALTAR STEEL (C/D/H/K/U/W-TRK CKST)
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Extra Info: AWD 6.2L
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