Reliability of the G80 Locker

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Messenger

Junior Member
Joined
Jun 20, 2012
Posts
14
Reaction score
6
Location
Muskegon
First Name
Benjamin
Truck Year
1981
Truck Model
K10
Engine Size
5.7L SB
I want to hear your thoughts and concerns on the G80 locker. I've been playing around with the idea of putting one in when I swap the gears. I've heard mixed things about it. I guess they call it the GOV-Bomb. The will be used as a recreational/weekend driver, occasional two tracking, and some weekends at Silver Lake Sand Dunes here in Michigan, and maybe a burnout or two if possible.

Here's my build:
Built up 350 SB appx 340hp
TH350 with shift kit
3.73 Gears with possible G80 Locker
31" Tires
 

350runner

Full Access Member
Joined
Feb 9, 2013
Posts
2,858
Reaction score
224
Location
tx
First Name
Ceasar
Truck Year
82
Truck Model
c10
Engine Size
350
They do good just stay away from right hand turn burn outs and you'll be ok

Sent from the dust in front of you!
 

NOPHO84K30

Full Access Member
Joined
Feb 28, 2013
Posts
479
Reaction score
84
Location
north phoenix
First Name
justin
Truck Year
1984 silverado k30
Truck Model
K30 dana 60 corp14 ff
Engine Size
454 sm465 np205
Im prety sure mine just craped out got the one whel peel now. But I dont know how old it was could be original im looking at a detroit new gears master install kit open carrier around $1400 having a shop do the install im not trying it never done it not trashing new parts trying to figure it out ....
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,117
Reaction score
23,995
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Gov-loc in a 10 bolt is like Russian roulette. Nine times out of 10 they fail, sometimes they just quit working, but sometimes they pop and the pieces get lodged somewhere and can chip teeth or even grenade the carrier.
 

gpmorgan

Full Access Member
Joined
Nov 9, 2013
Posts
562
Reaction score
105
Location
Tupelo Ms.
First Name
greg
Truck Year
1992
Truck Model
1500
Engine Size
632
Eaton limited slip is what I used on my c1500. Quite and smooth operation. The only time it slips is when you turn but if WOT you better hang on because you will be drifting. And yes, the gov-lock is a gov-bomb.
 

kleedus

Full Access Member
Joined
Jan 25, 2012
Posts
1,726
Reaction score
149
Location
wyo
First Name
Ray
Truck Year
1960 threw 91
Truck Model
c10 to k30
Engine Size
350 threw 454
the g80 is considered a low speed traction device not really designed for burn outs and abuse. more for slow light duty stuff snowy muddy roads in a daily driver.

I have one in my 07 crew cab I just found that out today I had an axle seal leaking while fixing that I discovered the g80 in it. I daily drive it and never new it was in there. it works still I just don't get this truck in situations where I need it so I never new.
 

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,014
Reaction score
9,014
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
Gov-loc in a 10 bolt is like Russian roulette. Nine times out of 10 they fail, sometimes they just quit working, but sometimes they pop and the pieces get lodged somewhere and can chip teeth or even grenade the carrier.

They're worse than Russion Roulette. You're right, 9 of 10 fail, not 1 of 5 or 6. :rofl:

There are plenty of other good LSD (Limited Slip Diff) units, or Locker Units out there. Avoid the G80 Eaton Gov-Lok. It doesn't get the name Gov-Bomb for no reason at all.

You can even cheap out and go with a Lunchbox locker in an open diff without having to reset up your ring and pinion if you can tolerate a bit of harshness on turns and maybe some ratcheting noises from the rear axle. I'd keep in under 300hp and consider 33in tires the max if going with a lunchbox. It's said they'll handle up to 35in tires and 350hp, but a safety margin in there it should last. I wouldn't hesitate to put one in a stocker with some mild adders.
 

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,014
Reaction score
9,014
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
the g80 is considered a low speed traction device not really designed for burn outs and abuse. more for slow light duty stuff snowy muddy roads in a daily driver.

I have one in my 07 crew cab I just found that out today I had an axle seal leaking while fixing that I discovered the g80 in it. I daily drive it and never new it was in there. it works still I just don't get this truck in situations where I need it so I never new.

This is also true about low speeds under 25mph. Gov-Lok is a fantastic unit if all you're doing is things like pulling a boat out of the water up a slippery ramp or trying to get up a snowy slick steep driveway. Past that, they just don't tolerate much abuse.
 

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,014
Reaction score
9,014
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
Eaton limited slip is what I used on my c1500. Quite and smooth operation. The only time it slips is when you turn but if WOT you better hang on because you will be drifting. And yes, the gov-lock is a gov-bomb.

That is a good unit. Now I do forget which one, but the Auburn LSD is also a good unit. Foamy did the research when he was shopping for one and one of the 2 won him over because one could be rebuilt fairly reasonably, and the other once it wore out, by the time you rebuilt it, you're better off just to buy a new unit. Most LSD units use clutches and steels like an auto transmission clutch pack and they do wear out over time.
 

MadOgre

Full Access Member
Joined
May 4, 2014
Posts
4,090
Reaction score
49
Location
NA
First Name
NA
Truck Year
NA
Truck Model
NA
Engine Size
NA
I think the Torsen or Detroit True Trac lockers are still in the same price range as Eaton or Auburn Limited Slips.

I have not seen one in action but I am curious as im thinking that I may want one.
 

Latest posts

Forum statistics

Threads
42,140
Posts
910,037
Members
33,642
Latest member
Bhardiman1
Top