10 Bolt Rear Axle Oil Change w/ Factory Limited Slip

[Swims350]

I couldn't read em lol.

 

[89Suburban]

Fill til it comes out of the bottom of the hole and replace and tighten plug.

 

[HotRodPC]

Hey 89S Dawg, you never did answer. Are you sure your rear differential is OEM? What is your RPO code for that unit. Its not a GovLock unit. Has anyone been able to tell you which unit it is?

 

[89Suburban]

Hey 89S Dawg, you never did answer. Are you sure your rear differential is OEM? What is your RPO code for that unit. Its not a GovLock unit. Has anyone been able to tell you which unit it is?

I don;t know how to tell buddy. Where do I look? In the glove box? I'll have to take the drywall screw out to open it, lol.

 

[HotRodPC]

I don;t know how to tell buddy. Where do I look? In the glove box? I'll have to take the drywall screw out to open it, lol.

Well hell yes. You'll have to take the screw out and take a good pic of your RPO code label and post it up so we can see your RPO codes. I am very interested in seeing what code they gave for the LSD. Maybe my truck have it too and I just don't know it.

 

[89Suburban]

Well hell yes. You'll have to take the screw out and take a good pic of your RPO code label and post it up so we can see your RPO codes. I am very interested in seeing what code they gave for the LSD. Maybe my truck have it too and I just don't know it.

Ok bud, I will try and remmeber.

 

[89Suburban]

Well hell yes. You'll have to take the screw out and take a good pic of your RPO code label and post it up so we can see your RPO codes. I am very interested in seeing what code they gave for the LSD. Maybe my truck have it too and I just don't know it.

What can you make of this bud?

 

[HotRodPC]

What can you make of this bud?

I can make you got a G80 locking Diff and GT4 is 3.73 I do beleive. When I get a bit more time, I'll look over your codes, But G80 is usally Gov Lock junk, so someone may have swapped out your carrier before. Unless there is somethign I don't know which is very very possible too.

 

[89Suburban]

I can make you got a G80 locking Diff and GT4 is 3.73 I do beleive. When I get a bit more time, I'll look over your codes, But G80 is usally Gov Lock junk, so someone may have swapped out your carrier before. Unless there is somethign I don't know which is very very possible too.

So the code is for govlok, but you think the pic shows something different? This has been taken apart before....

 

[HotRodPC]

So the code is for govlok, but you think the pic shows something different? This has been taken apart before....

I'll look again but for some reason, on your change gear oil thread, that didn't look like a Gov-Lock set up to me. It looked more like a Limited Slip set up to me. If I am right, and I could be wrong, if I a right, either someone swapped out the carriers to a LSD unit at one time, or GM used more than just Gov-Lock for locking differentials.

I am thinking gov lock has like a Cam wedge system, not springs for 1. Also I do not see the gov gear outside the ring gear that is notorious for stripping teeth and why the govlock sucks.

 

[89Suburban]

I'll look again but for some reason, on your change gear oil thread, that didn't look like a Gov-Lock set up to me. It looked more like a Limited Slip set up to me. If I am right, and I could be wrong, if I a right, either someone swapped out the carriers to a LSD unit at one time, or GM used more than just Gov-Lock for locking differentials.

Yah, ok, I wasn't sure what ya meant bro. So what I do have is not factory then, right?

 

[RetroC10Sport]

AJ9 - Rear Seat (3rd row, I think)
AK9 - Shoulder belts
AS3 - Rear sets (Suburban/Utility)
AT5 - Center folding seat
AU3 - power locks
A31 - Power windows
A52 - Front bench seat
BC3 - Grey interior IP ornamentation
BY1 - Ext. body ornamentation (Var 3)
B30 - Carpeted floor covering
B32 - Front floor mats
B33 - rear floor mats
B85 - Bright Ext moulding
B96 - Bright wheel opening moulding
CD4 - Pulse wipers
CMD - Flint, MI plant
C5W - 7000 lb. GVW
C60 - Front A/C
C69 - Rear A/C
D1G - Color red
D45 - OS mirror, wide load, stainless steel
E5Z - Adapter, speedo delete (will investigate)
E6C - Country, Gambia (will investigate)
E9Z - key, speedo delete
F51 - FRT, RR HD shocks
GT4 - 3.73 axle
G80 - limited slip axle
JB5 - Power disc/drum, 6500 lbs
KC4 - Engine oil cooler
K34 - cruise control
K68 - 105 amp alternator
L05 - 5.7L TBI V8
MD8 - 700r4 transmission 4 speed auto
MX0 - auto overdrive provisions
NA5 - federal emissions
NE2 - 40 gallon tank
NK3 - sport steering wheel
N33 - tilt wheel
N67 - wheel, rally
SLM - Stock order sale
TFE - Commitment plus sale
TR9 - Lamp group
TT4 - Halogen headlamps -4
T63 - headlamps on alarm
UA1 - High capacity battery
UM6 - AM/FM radio, seek/scan/ auto-rev cassette
UN9 - radio equipment - suppression
UP8 - AM/FM radio provisions
UY7 - trailering wiring harness
U73 - fixed radio antenna
VE5 - frt/rr impact bumper chrome
VG3 - frt bumper impact strip
VG5 - gas tank protector
VR4 - trailer hitch
V02 - HD radiator w/ oil cooler
V22 - chrome grille
V73 - vehicle statement usa/canada
XHB - 235/75/15 frt tire
X6Z - auto locking hub
YD3 - base axle
YD5 - base frt spring
YD6 - base rr spring
YE9 - comfort/conv package #3
YG3 - Deluxe package, bright marker/taillight trim
YHB - 235/75/15 tire rr
ZHB - 235/75/15 spare
ZQ2 - driver convenience sales package
ZW9- base body equipment
ZY4 - two-tone deluxe
Z82 - HD trailer provisions
Z88 - GMC
42A - accent stripe silver/black
74L - secondary color victory red
82D - med. grey cloth
82I - med. dark grey interior trim
83U - primary color silver

 

[HotRodPC]

Here are some Gov-Lock Photos

Eaton Gov-Lok 12bolt

Eaton Gov-Lok 14bolt Semi Float

Eatup Gov Bomb Unknown Axle Aka GovBomb, aka GovGrenade and why many don't like them.

 

[89Suburban]

Oh **** Retro!!!!

 

[89Suburban]

Here are some Gov-Lock Photos

Damn, that looks complicated and easy to break.