What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Is the G80 a gov loc?

Eric M.

Eric M.

1/2 ton status
Joined
Dec 10, 2001
Posts
2,142
Reaction score
3
Location
Oakland, CA
I have an 88 2wd 3/4 ton Burb with a 14 Bolt FF. The list of codes in the glove box shows G80. Is that a Gov Loc option in 1988? Any code in there that will tell me the gears?

I'm being lazy and don't wanna pull the cover :D

Eric M.
 
yep g80 is gov loc

look for gu6 or gu5 or any other g codes.

i think ht6 is 4.56

gu6 is 3.42

ryan
 
To say that G80 is a gov-loc is a mis-nomer. Yes g80 is the standard RPO for a locking differential. Is it a Gov-loc chances are yes however if you look at the M1009 they will have a G80 code but as we all know they have detroits. Also some 1 tons that had the Dana 70s also had lockers that were not gov-locs. Not trying to start a flame war but G80 does not mean "Gov-Loc" it means locking differential of some form.

Ira
 
He tells the truth. G80 in a D70 is not a gov loc but a pwr loc. In your application a G80 is a gov loc though.
 
G80 was also used for the Eaton limited slip that was used in the '60s and early '70s prior to the release of the Gov-lock. In an '88 Suburban though, it is guaranteed to be a Gov-lock.
 
Yep sorry I did not read thouroghly and did not see you specified an 88 3/4 ton. Yes you have a gov-loc and apparently they are not as failure prone as the 10 and 12 bolt variety but they do fail at times. I just get annoyed with the G80 = gov-loc response.

Ira
 
I am not sure that RPO codes are even listed on CUCV's.
But (sorry to nitpick) the detroit locker (no-spin) that came optional in the older chevy's with the Eaton H052/72 rearend is "G86 No-Spin" on the RPO sheets.
 
Thanks guys. Gov Loc it is. I'll check the glove box for any codes that could be gearing.

Eric M.
 
I noticed the G80 but didnt remember what the gear codes were. Id be interested to know what it was. :D
 
jays68yak said:
I noticed the G80 but didnt remember what the gear codes were. Id be interested to know what it was. :D
Click to expand...

G80, GT5

4.10 w/ a Gov Loc! It'll look good in my pile-o-differentials. This one is a keeper. I'll be selling the 74 14 Bolt FF, 4.10 w/ open diff.

Eric M.
 
sandawgk5 said:
To say that G80 is a gov-loc is a mis-nomer. Yes g80 is the standard RPO for a locking differential. Is it a Gov-loc chances are yes however if you look at the M1009 they will have a G80 code but as we all know they have detroits. Also some 1 tons that had the Dana 70s also had lockers that were not gov-locs. Not trying to start a flame war but G80 does not mean "Gov-Loc" it means locking differential of some form.

Ira
Click to expand...

Umm ... when you say M1009, do you mean "everything but the M1009"?

I thought the M1008, 1028, 1010 and whatever the fourth 1-ton pickup had the Detroits, as they're 14BFF's, and the M1009 Blazer had a Gov-loc being a 10-bolt.

-- A
 
I'm pretty sure that is the case also- M1009's had the Gov-Loc, Pickups had the Detroit and 4.56's
 
Yep I got my numbers mixed up I could not remember which was the K5. 50/50/90 I guess but what I meant to say was that the military Blazer only had a gov-loc all others had something else.

Ira
 
You must log in or register to reply here.

Latest Posts

Top Bottom