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Old 11-07-2009, 08:30 AM   #1
Velocity1
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Default What Rears?

Trying to determine which rears I have in my 2000 Z71 Silverado. I know I have the G80 in the rear. Considering going deeper with the gearing and want to order the right R&P's. Appreciate any help.
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2000 Silverado 1500 4x4 Z71 Copo
5.3 K&N CAI Cat Back Flowmaster Duals
4L60E TransGo kitted w/Oregon Performance HiPo servos
Rancho suspension lift
Gunner 6 wheels 305x55x20's
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Old 11-07-2009, 09:15 AM   #2
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Check your RPO code in the glovebox. GT5 is a 4:10 and GT4 is a 3:73.

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Old 11-07-2009, 03:47 PM   #3
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Jim,
More interested in the style or type of rears in my truck. I'll have a look at the RPO codes but I'm trying to determine if I have the 8.5 ring gear rear, etc.. I want to order new ring and pinions but don't know what my rears are referred to as.
Thanks.
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2000 Silverado 1500 4x4 Z71 Copo
5.3 K&N CAI Cat Back Flowmaster Duals
4L60E TransGo kitted w/Oregon Performance HiPo servos
Rancho suspension lift
Gunner 6 wheels 305x55x20's
Diablo Tune
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Old 11-08-2009, 09:52 AM   #4
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1500, 2500 or 3500? Have you thought about adding your truck information to your signature so everyone knows what model talking about? You will get a lot more replies if you do.
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2004 SILVERADO 2500HD LS
Pro Comp Leveling Kit
285-75-16 Cooper ST All Terrains
Pro Comp Programmer
Bilstein Shocks
Linux Bed Liner
Tinted Windows



Other rides:

1967 Landcruiser <350 Chevy>
1970 Camaro
1990 Geo Metro Convertible
2007 FJ Cruiser
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Old 11-08-2009, 08:46 PM   #5
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1500 4x4. Will correct sig. to include vital information.
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2000 Silverado 1500 4x4 Z71 Copo
5.3 K&N CAI Cat Back Flowmaster Duals
4L60E TransGo kitted w/Oregon Performance HiPo servos
Rancho suspension lift
Gunner 6 wheels 305x55x20's
Diablo Tune
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Old 11-09-2009, 07:42 AM   #6
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Quote:
Originally Posted by Velocity1 View Post
1500 4x4. Will correct sig. to include vital information.
Looks good! You have a 10 bolt 8.5" rear end in that truck and if it says G 80 in the RPO codes it will have an Eaton Gov-Lok Posi in there.
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2004 SILVERADO 2500HD LS
Pro Comp Leveling Kit
285-75-16 Cooper ST All Terrains
Pro Comp Programmer
Bilstein Shocks
Linux Bed Liner
Tinted Windows



Other rides:

1967 Landcruiser <350 Chevy>
1970 Camaro
1990 Geo Metro Convertible
2007 FJ Cruiser
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