Not all duramax trucks have the G80? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > Speciality Forums > Drivetrain - 2001 - 2010
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

Drivetrain - 2001 - 2010 Discuss front and rear axle, transfer case, brakes, etc. Transmission questions belong in the appropriate transmission forum below. First through fourth generation...

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Like Tree4Likes

Reply
 
LinkBack Thread Tools
Old 12-29-2015, 09:42 PM   #1 (permalink)
90GMC62L
Diesel Expert
 
90GMC62L's Avatar
 
Join Date: Nov 2009
Location: Nebraska
Posts: 2,978
iTrader Score: 0 reviews

Old School Oil Burners (Old SOBs) Member

Not all duramax trucks have the G80?

Hey all,
Just trying to confirm what I pretty much already know. Just bought an 02 LB7/ZF6 truck and we just got a ton of snow here, and my truck is absolutely worthless in this stuff unless i'm in 4WD. At first I was blaming the tires but now after looking in the glovebox, i don't see the G80 code which bums me out... I thought all duramax trucks had it. So is it true? No G80 definitely means no posi? My 6.5 has the G80 code and plows through this stuff in 2WD like nothing...Kind of irritating.

__________________
Aaron

1983 Silverado K10 RC/LB 305 700R4 119K miles:
1993 Formula Firebird LT1 6-speed. 119K miles:
1995 GMC K2500 LB/EC 6.5L 4L80E 167K miles:
DE 4" no muffler exhaust, OBD-I high idle mod, 285s, Walbro FRC-10 lift pump, Custom FTB mod, stock FFM delete, '82 6.2 Diesel fuel filter setup with filter heater.
2002 Chevy 2500HD Duramax/ZF6 CC/SB
Link to my build thread ----> https://www.dieselplace.com/forum/63-...liability.html
Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-29-2015, 10:14 PM   #2 (permalink)
LETHAL WEAPON
Diesel Prodigy
 
LETHAL WEAPON's Avatar
 
Join Date: Nov 2008
Location: Temple Hills Md
Posts: 4,186
iTrader Score: 1 reviews

DelMarVa Diesel Club Member

Well mine didnt come with a g80 and I'm glad the G stands for GRENADE but if my truck did have one would have been got broken with my over sizes wheels and tires but I have an ARB air locker sitting in the closet waiting to get installed 😊

__________________
Cool *** Diesel Dave
2008 3500 HD DUALLY 4WD SLE 420 HP/855TQ 6.6 LMM D-MAX,
4inch Turbo back straight pipe into 7 stacks,
Modified Allison 6 speed done by suncoast,
EFI LIVE with Danville performance Tow tune & ,DPF,DOC,EGR delete Best MPG is 21.3 PVC re-route
Filtration F.A.S.S. w/Donaldson P551313
Niketane filter head w/ Donaldson P553207 w/ site bowl
Wheels 22.5 ALCOA's wraped in Goodyear 255/70/22.5 and spun by 4.56 gears,Window Tint 5% on all windows Gauges... Boost,Fuel PSI,Differential, Air Pressure, Oil temp &EGT and EDGE CTS monitor, Shocker XL and K5LA train horns, Fleece performance Tuff shafts(NO MORE PASSENGER SIDE DISCONNECT SLEEVE TO BREAK OR FRONT ACTUATOR NOT TO WORK) Front driveshaft will spin while in 2wd, MAG-HYTEC differential cover , Alligator Performance tranny lines, Coolant filtration kit, Krytonite UCA,Tie rods, Centerlink and Idler support kit, Merchant Automotive motor mounts....."ARB air locker install


INDIVIDUALITY....You laugh at me because I'm different....I laugh at you because yall LOOK all the same
Offline   Reply With Quote Quick reply to this message
Old 12-29-2015, 10:56 PM   #3 (permalink)
TiredFarmer
Gone but not forgotten member
 
TiredFarmer's Avatar
 
Join Date: Jun 2013
Location: Waynesboro, Tennessee
Posts: 3,455
iTrader Score: 0 reviews

Probably because of the ZF-6. And, the G80 isn't posi-traction it is a limited slip differential. All the Allison equipped ones I've seen have the G80.
__________________
2008 Silverado K3500HD dually CCLB (LMM)
2005 Silverado K2500HD ECLB LT (LLY) (SOLD)
2003 Silverado 2500HD ECSB 6.0l/4L80e
2000 Pontiac Grand Am GT
Member #1063 3500 Dually Club
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-29-2015, 11:01 PM   #4 (permalink)
davester
Diesel Prodigy
 
Join Date: May 2015
Location: Canada
Posts: 4,390
iTrader Score: 0 reviews

Could be worse. It could say G80 on the code sheet in the glovebox, but when you take the cover off, it's just a regular diff...I guess it grenaded on the previous owners [for my truck] and they just threw in the cheapest replacement...
__________________
2004 GMC Sierra 3500 C&C, added 4WD, 6.0L gas, Extended Cab, SLE, Transgo 4L80e-HD2 kit installed
Whee! Dually Club Member #1109
Offline   Reply With Quote Quick reply to this message
Old 12-29-2015, 11:39 PM   #5 (permalink)
TheBac
Bac To The Future
 
TheBac's Avatar
 
Join Date: Nov 2003
Location: Mid-Michigan
Posts: 23,029
iTrader Score: 3 reviews

Yes, there are Dmax trucks out there without a G80. I believe the first few years, it was an option by itself, not included in the towing package or offered as standard equipment.
__________________
Tom

"BBT" -- 2003 GMC 2500HD CC/SB 4x4 - 12.14 @ 111.15
"Kleshay" -- 2000 C5 Corvette -- the toy
"The Cruzer" -- 2014 Chevy Cruze Diesel -- the DD

Marlene (Molly) Bacon -- 1936 - 2019 -- RIP Mom
You're missed both at home and on the piano

Success is getting what you want. Happiness is wanting what you get.
Reality is a matter of perspective.


Last edited by TheBac; 12-29-2015 at 11:40 PM.
Offline   Reply With Quote Quick reply to this message
Old 12-30-2015, 12:23 AM   #6 (permalink)
ktmrfs
Diesel Boss
 
Join Date: Jul 2004
Location: Portland, OR
Posts: 1,465
iTrader Score: 0 reviews

Quote:
Originally Posted by TiredFarmer View Post
Probably because of the ZF-6. And, the G80 isn't posi-traction it is a limited slip differential. All the Allison equipped ones I've seen have the G80.
well, I disagree. it is an auto locking differential not a posi/limited slip.

However, I thought at least all the allison durmax came with the G80 std. They did from 2004 and up.
__________________
2015.5 Sierra Denali CC/SB/4x4 Stone Blue Metallic/Jet Black Interior
pinstriping by Bob Spencer AKA "spirit", undercover FLEX tonneau cover, color matched bug shield and vent visors, raintracker rain sensing wipers, X-treme coating bedliner, gm trailering camera system, coolant filter, Bilsteins, remote tailgate lock

04.5 LLY CC/SB/4x4 Allison Dark Green Metallic/Dark Charcoal Grey Interior
Webasto Hollandia Sunroof, Carbon Fiber Interior Trim, color matched bug shield & vent visors X-treme coating bedliner, Access roll top cover, Westin Step Bars, Lubrication Specialists Aux fuel filter, coolant filter, CAI, Michelin LTX tires, Manual High Idle Mod, Bilsteins, prodigy brake controller, raintracker rain sensing wiper controller, Remote autolocking tailgate, Reese Titan Class V hitch, Allison badges, Pinstriping by Bob Spencer, 4x4 decals removed, color matched door handles, 4 headlight mod, Homelink console.

97 Mercedes SL500, red with tan interior 97 Mercedes E420 sedan, royal indigo with grey interior 2001 KTM400EXC, 2011 Outback 295RE travel trailer
Offline   Reply With Quote Quick reply to this message
Old 12-30-2015, 06:45 AM   #7 (permalink)
c20elephant
Gone but not forgotten member
 
c20elephant's Avatar
 
Join Date: Apr 2013
Location: Phoenix, Az.
Posts: 2,582
iTrader Score: 0 reviews

Here some info...


https://www.dieselplace.com/forum/76-...conumdrum.html
=
=
__________________
~ Mike H ~
2006 EXTENDED CAB LONG BED
Offline   Reply With Quote Quick reply to this message
Old 12-30-2015, 10:30 PM   #8 (permalink)
Adrexco
Diesel Apprentice
 
Join Date: Aug 2007
Location: Eastern PA
Posts: 472
iTrader Score: 0 reviews

I can confirm that not all Duramax's came with a G80. Mine didn't, I bought it new.
__________________
07.5 GMC LMM Extended Cab 8' bed SLE, Quad with Econo tune, Lost CAT & DPF, EGR Blocker plate, micron auxiliary frame mount fuel filter with lift pump, Top Gun Full replacement bumper, 2" lift keys, Timbren front control arm bumpers, KYB Monomax shocks, Century Cab High Cap, Under the rim Line-a-Bed, Towing mirrors, H2 rims & Firestone Transforce AT 265/70/17, Kenwood DDX6703S carplay double DIN DVD media center, 4x Pioneer TS-A1685R speakers, back-up camera, In-Dash USB Charging Station, Rosta cruise control, Compustar GM10 remote start, Compass/ambient temperature auto dimming rear view mirror, Silverstar headlights, 2 LED replacement Fog light, 2 LED spot lights behind grill, All lights on mod, TransGo Jr,. Allison Deep Pan and Filter, Merchant Auto deep filter lock, DMax.com Arctic Tranny Cooler, AAM Helical Posi, AAM Aluminum Differential Cover
Offline   Reply With Quote Quick reply to this message
Old 12-31-2015, 10:07 AM   #9 (permalink)
jon5212
Diesel Boss
 
jon5212's Avatar
 
Join Date: Mar 2009
Location: Indianapolis IN
Posts: 1,436
iTrader Score: 0 reviews

INDP Member

Im not sure what my 01 ZF6 had... but what do you expect in the snow in 2wd with a bunch of torque and no weight on the rear tires? An automatic truck is a little more forgiving in 2wd in the snow, but when I had my 01 I always ran in 4wd in the snow, because thats what its meant for.
__________________
2005 GMC 2500 HD CCSB SLT, Stock except LBZ mouthpiece, 5 inch downpipe back, full EGR delete.
Offline   Reply With Quote Quick reply to this message
Old 12-31-2015, 10:21 PM   #10 (permalink)
90GMC62L
Diesel Expert
 
90GMC62L's Avatar
 
Join Date: Nov 2009
Location: Nebraska
Posts: 2,978
iTrader Score: 0 reviews

Old School Oil Burners (Old SOBs) Member

Quote:
Originally Posted by jon5212 View Post
Im not sure what my 01 ZF6 had... but what do you expect in the snow in 2wd with a bunch of torque and no weight on the rear tires? An automatic truck is a little more forgiving in 2wd in the snow, but when I had my 01 I always ran in 4wd in the snow, because thats what its meant for.
I see what you're saying but I just think it's embarrassing that my 6.5 plows through it without breaking a sweat in 2WD but it has the G80. I guess I just got too used to it. My old 98 1500 was a one wheel peeler too and it drove me nuts. I just don't have the patience to sit there and spin all day lol.

__________________
Aaron

1983 Silverado K10 RC/LB 305 700R4 119K miles:
1993 Formula Firebird LT1 6-speed. 119K miles:
1995 GMC K2500 LB/EC 6.5L 4L80E 167K miles:
DE 4" no muffler exhaust, OBD-I high idle mod, 285s, Walbro FRC-10 lift pump, Custom FTB mod, stock FFM delete, '82 6.2 Diesel fuel filter setup with filter heater.
2002 Chevy 2500HD Duramax/ZF6 CC/SB
Link to my build thread ----> https://www.dieselplace.com/forum/63-...liability.html
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rumour but maybe true about the coming Duramax CGiron New Vehicle Information 2 10-20-2015 10:30 AM


All times are GMT -4. The time now is 12:14 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide