Saying Hi, and a QuestionH
#1
Saying Hi, and a QuestionH
Hello everyone, new guy here with a question. I'll be selling my Silverado soon and replacing it with a Tahoe.
I'm looking for one with 4x4 and the HD tow package, I see some listed with a 3.08 rear end gear but I really want a 3.42.
Does the 4x4 automatically come with a 3.42?
Thanks BV
I'm looking for one with 4x4 and the HD tow package, I see some listed with a 3.08 rear end gear but I really want a 3.42.
Does the 4x4 automatically come with a 3.42?
Thanks BV
#2
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It depends how it was ordered when new. My 99 Tahoe 4dr LS 2wd was ordered with 373 positraction tow package. That is a really all around gear since essentially you have a 5 speed automatic with the o/d. I know 4x4 is popular, but maintenance is more costly especially tires. JMHO, good luck.
#3
Super Moderator
In the Glovebox, you'll find a placard with RPO Codes thereon.
Find one starting with a "G", followed by a "#".
This will give you your Axel Ratios.
Examples by in2pro...
https://chevroletforum.com/forum/tah...47/#post303606
If one of these are not what you have, you can do a lookup on the Codes.
Find one starting with a "G", followed by a "#".
This will give you your Axel Ratios.
Examples by in2pro...
https://chevroletforum.com/forum/tah...47/#post303606
If one of these are not what you have, you can do a lookup on the Codes.
Last edited by SWHouston; June 18th, 2015 at 3:35 AM.
#4
Tahoe
If you plan to tow, may I suggest the Suburban?
Also, you may want to specify year as well.
09 added the 6 speed auto (vs. the old 4).
Or are you buying one new? I think they are up to an 8 speed.
Also, you may want to specify year as well.
09 added the 6 speed auto (vs. the old 4).
Or are you buying one new? I think they are up to an 8 speed.
#6
It depends how it was ordered when new. My 99 Tahoe 4dr LS 2wd was ordered with 373 positraction tow package. That is a really all around gear since essentially you have a 5 speed automatic with the o/d. I know 4x4 is popular, but maintenance is more costly especially tires. JMHO, good luck.
The G80 is a locking rear differential. Big difference. It mechanically locks the two rear wheels together; unlike a positraction rear.
Gear ratio is independent of whether it's a 4x4. Generally speaking, the higher gear ratios will be linked with the towing package.
I agree with one of the above posters - a Suburban is a much better tow vehicle than a Tahoe.
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#8
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These trucks never came with positraction. Positraction is a limited-slip differential with clutch packs, and it requires a special additive in the rear axle fluid, a friction modifier, to prevent chatter.
The G80 is a locking rear differential. Big difference. It mechanically locks the two rear wheels together; unlike a positraction rear.
Gear ratio is independent of whether it's a 4x4. Generally speaking, the higher gear ratios will be linked with the towing package.
I agree with one of the above posters - a Suburban is a much better tow vehicle than a Tahoe.
The G80 is a locking rear differential. Big difference. It mechanically locks the two rear wheels together; unlike a positraction rear.
Gear ratio is independent of whether it's a 4x4. Generally speaking, the higher gear ratios will be linked with the towing package.
I agree with one of the above posters - a Suburban is a much better tow vehicle than a Tahoe.
Just to be political correct here, I am going to share with any who may be interested, the build sheet as well as the CO(window sticker)this is the correct listing from GM. i kept all the original paper work when purchased NEW listing @ just over 32K.
GT4 AXLE REAR, 3.73 RATIO 3.73R(GT4)
G80 AXLE REAR POSITRACTION,LIMITED SLIP POSITRACTION L/SLIP
R/AXLE(G80)
Since my interest in cars started before any type of rear axle option, whether it be positration/traction lock/Detroit locker/Limited Slip or whatever, the slang of posi traction has been around. They all do the same, lock the rear wheels. JMHO
#9
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Just to be political correct here, I am going to share with any who may be interested, the build sheet as well as the CO(window sticker)this is the correct listing from GM. i kept all the original paper work when purchased NEW listing @ just over 32K.
GT4 AXLE REAR, 3.73 RATIO 3.73R(GT4)
G80 AXLE REAR POSITRACTION,LIMITED SLIP POSITRACTION L/SLIP
R/AXLE(G80)
Since my interest in cars started before any type of rear axle option, whether it be positration/traction lock/Detroit locker/Limited Slip or whatever, the slang of posi traction has been around. They all do the same, lock the rear wheels. JMHO
Just to be political correct here, I am going to share with any who may be interested, the build sheet as well as the CO(window sticker)this is the correct listing from GM. i kept all the original paper work when purchased NEW listing @ just over 32K.
GT4 AXLE REAR, 3.73 RATIO 3.73R(GT4)
G80 AXLE REAR POSITRACTION,LIMITED SLIP POSITRACTION L/SLIP
R/AXLE(G80)
Since my interest in cars started before any type of rear axle option, whether it be positration/traction lock/Detroit locker/Limited Slip or whatever, the slang of posi traction has been around. They all do the same, lock the rear wheels. JMHO
I don't know how else to describe it - a positraction uses clutchpacks, and the two axle shafts are never truly joined together.
The G80 mechanically locks the two rear axles together. It doesn't have clutches.
The positraction is a LIMTED SLIP. Key word is SLIP. A limited slip still allows slip between the two axles. The G80 does not.
Watch this video - and see the difference between a limited-slip and the G80.
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Sometimes it's just not worth the argument. I have to stand by my background of knowledge and the paper work that came with my $32k 1999 Tahoe LS 4dr 2WD.
Last edited by justimagination; July 5th, 2015 at 1:33 AM.