GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

Question about GM's "locker"

Thread Tools
 
Search this Thread
 
Old Sep 17, 2006 | 06:30 AM
  #1  
n737nc's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2006
Posts: 57
Likes: 0
From: Dallas, Tx
Default Question about GM's "locker"

I have 2006 Silverado with 3:73's and a rear end locker from the factory. What locker is in there? Is this just a GM product???

Just curious if I would benifit from an Eaton or not.

Thanks!
Nick
Reply
Old Sep 17, 2006 | 07:04 AM
  #2  
Blown02Sierra's Avatar
TECH Enthusiast
 
Joined: Jan 2006
Posts: 629
Likes: 0
From: Vegas
Default

yeah, it has the G80. Throw it away. Eaton is way better. I love mine.
Reply
Old Sep 17, 2006 | 08:45 AM
  #3  
nightrunner's Avatar
Mr. Obvious
iTrader: (4)
 
Joined: Jan 2006
Posts: 6,006
Likes: 2
From: Manchester, TN
Default

a detroit tru-trac is always an option - no clutches
Reply
Old Sep 17, 2006 | 09:15 AM
  #4  
trever1t's Avatar
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default

The G80 is an Eaton mfg part for GM.
It is of lessor quality than others and is known to detonate under extreme load.
I had one in my last truck for 2 years with no problem but if you're going to mod for power then change it out when you do a gear swap.
Reply
Old Sep 17, 2006 | 09:24 AM
  #5  
n737nc's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2006
Posts: 57
Likes: 0
From: Dallas, Tx
Default

Originally Posted by trever1t
The G80 is an Eaton mfg part for GM.
It is of lessor quality than others and is known to detonate under extreme load.
I had one in my last truck for 2 years with no problem but if you're going to mod for power then change it out when you do a gear swap.

Don't think I'll be swapping gears. I have 3:73's right now and GM locker. Just curious what GM used as a locker. Sounds like it might be worth while to go ahead and replace it when the funds are right.
I want to start beefing up the weak parts before I start modding for more power. Servo, shift kit, locker and a tune are the first things on my list.

Thanks for everyones input!
Nick
Reply
Old Sep 17, 2006 | 08:32 PM
  #6  
DrX's Avatar
DrX
TECH Addict
20 Year Member
iTrader: (7)
 
Joined: Jun 2005
Posts: 2,703
Likes: 6
From: Canada
Default

The G80 is designed for low speed operation(e.g. offroad). It disengages at 20 mph providing there is at least a momentary drop in input torque(e.g. a shift). So far I have been lucky with mine. Don't know if it helps but I never let it see full torque unless the wheels are pointed straight ahead. Seems that some of the broken G80 stories I have read involve hammering it while going around a turn.
Reply
Old Sep 17, 2006 | 10:23 PM
  #7  
GMC_DUDE's Avatar
TECH Enthusiast
 
Joined: Dec 2003
Posts: 572
Likes: 0
From: Western WA
Default

less the "stupid".
Reply
Old Sep 17, 2006 | 10:33 PM
  #8  
simple02's Avatar
Staging Lane
 
Joined: Jul 2005
Posts: 71
Likes: 0
From: 909
Default

a friend of mine had a silverado with a g80 in it and he destroyed it giving it some gas around a turn (not full throttle) and it went kaboom! he wasnt very hard on the truck either
Reply
Old Sep 18, 2006 | 07:52 AM
  #9  
FastCrewCab4x4's Avatar
TECH Regular
 
Joined: Mar 2006
Posts: 425
Likes: 0
From: Blaine, TN
Default

Mine stayed locked the other morning while I was backing/Turning out of my driveway. It made some Horrible Noises. I'm suprised It didn't snap something. 2nd time it has happened. But it seems to drive fine still. maybe it's on it's way out
Reply
Old Sep 18, 2006 | 09:44 AM
  #10  
Wilde Racing's Avatar
How do I change this text
iTrader: (26)
 
Joined: Jan 2005
Posts: 7,294
Likes: 2
From: Behind the TIG welder
Default

Mine lasted for five years total, but the last three is when I was really testing it.

It will fail, but how long it lastest really depends on how you drive...... Parish had a g-80 when he broke the 1000hp mark.........
Reply



All times are GMT -5. The time now is 12:53 PM.