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Username Post: Rear end spider gears chewed up        (Topic#348808)
dbwinburn 
Infrequent Contributer
Posts: 32

Age: 39
Loc: IRMO SC
Reg: 02-04-12
12-21-17 07:23 PM - Post#2718722    

Started with a simple gear swap but found a whole tooth stuck to the magnet on the cover. 93 blazer 8.5” gov lock rear end. Small spider gear on one side is completely chewed up. All other gears show normal wear.
1-I’m trying to figure out what caused it
2-I can’t figure out how to get the locker out without destroying it. There are no holes to push the pins out.



 
wkobe 
Senior Member
Posts: 468
wkobe
Reg: 02-04-04
12-21-17 07:37 PM - Post#2718724    
    In response to dbwinburn

there is an8mm head bolt that is parallel to axles pull that bolt then push pin that holds spider gears out


wayne
1996 k1500 4.3 276k miles
1996 k2500 5.7 118k miles
1998 k2500 5.7 115k miles


 
dbwinburn 
Infrequent Contributer
Posts: 32

Age: 39
Loc: IRMO SC
Reg: 02-04-12
12-22-17 06:53 AM - Post#2718752    
    In response to dbwinburn

Not the pin I’m taking about carrier is on my workbench. There are tho pins that carry the locker. I’ve seen on newer versions ,holes on the ringside to punch them out but my casting is solid



 
Shepherd 
Frequent Contributor
Posts: 1344

Loc: Lake George, NY
Reg: 11-11-15
12-22-17 07:33 AM - Post#2718756    
    In response to dbwinburn

Pretty sure the Eaton traction lok G80 is not repairable as there are no listed parts.



 
someotherguy 
Moderator
Posts: 28698
someotherguy
Age: 48
Loc: Texas
Reg: 08-01-03
12-22-17 07:38 AM - Post#2718757    
    In response to Shepherd

Haven't done one but a quick look into it indicates the parts are prohibitively expensive.

Read for yourself, but don't take this as the definitive source - it's just a starting point -> http://www.pirate4x4.com/forum/chevy/582864-go v-lo...

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
wkobe 
Senior Member
Posts: 468
wkobe
Reg: 02-04-04
12-22-17 07:41 AM - Post#2718758    
    In response to Shepherd

https://www.summitracing.com/parts/etn-29411-00s/a ...


wayne
1996 k1500 4.3 276k miles
1996 k2500 5.7 118k miles
1998 k2500 5.7 115k miles


 
someotherguy 
Moderator
Posts: 28698
someotherguy
Age: 48
Loc: Texas
Reg: 08-01-03
12-22-17 08:23 AM - Post#2718762    
    In response to wkobe

Is that really a kit for the Gov-Loc? Eaton doesn't refer to it as a posi, and they do offer a posi that is a very different unit. Not sure if those gears interchange.

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
dbwinburn 
Infrequent Contributer
Posts: 32

Age: 39
Loc: IRMO SC
Reg: 02-04-12
12-22-17 09:04 AM - Post#2718768    
    In response to dbwinburn

I’ve been looking at Eaton true trac. But I’ve gotta eat. Those start off in the $400 range. It cost 100 for the spider gears ad that’s only off I can get the Locker without breaking it so I mine as well go with the Truetrac. I’ll give it a few days to think on it. Right now I have a motor and trans that needs to get together



 
wkobe 
Senior Member
Posts: 468
wkobe
Reg: 02-04-04
12-22-17 12:15 PM - Post#2718786    
    In response to someotherguy

would have to call and find out

wayne
1996 k1500 4.3 276k miles
1996 k2500 5.7 118k miles
1998 k2500 5.7 115k miles


 
wkobe 
Senior Member
Posts: 468
wkobe
Reg: 02-04-04
12-22-17 12:34 PM - Post#2718789    
    In response to wkobe

on the following page you can get to eaton parts but not sure what they call the rear end on there site
http://www.eaton.com/Eaton/ProductsService s/Vehicl...

wayne
1996 k1500 4.3 276k miles
1996 k2500 5.7 118k miles
1998 k2500 5.7 115k miles


 
454cid 
Valued Contributor
Posts: 2863
454cid
Age: 45
Loc: West Michigan
Reg: 02-18-12
12-22-17 01:10 PM - Post#2718791    
    In response to wkobe

http://www.eaton.com/Eaton/ProductsService s/Vehicl...

I don't think you're going to find parts for it. They're not considered to be very good by most people any way.

99 K3500 RCLB


 
dbwinburn 
Infrequent Contributer
Posts: 32

Age: 39
Loc: IRMO SC
Reg: 02-04-12
12-22-17 05:52 PM - Post#2718804    
    In response to 454cid

We can close this one up. I’m getting the Detroit true track. That should ship tomorrow.



 
bowtie44s 
Valued Contributor
Posts: 3966
bowtie44s
Age: 35
Loc: wv
Reg: 08-29-12
12-22-17 06:48 PM - Post#2718812    
    In response to dbwinburn

Please post how well you like it. I have been thinking about trying one for a while now.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
toro455 
"3rd Year" Silver Supporting Member
Posts: 463
toro455
Loc: Western NY
Reg: 06-15-02
12-27-17 09:23 AM - Post#2719096    
    In response to dbwinburn

It's a lot to spend but I think you will like the TrueTrac. If it makes you feel better mine was about $600 when I did it in 2003. That didn't include extra shims and I already had a magnetic base and dial indicator etc to check the backlash.

I pulled the 8.5" gov-lock out of my '03 truck and replaced it with the TrueTrac at 300miles. I saved the gov-lock to go back in in the event I ever decide to sell the truck. I've had 3 vehicles with the TrueTrac and really like them. The only thing negative I've ever read about them is that you need to be careful in situations like rock climbing where one wheel is completely unloaded and the other side has full traction (not personal experience just what I read). I run the current one all year, which includes on snow and ice, and not had any issues with 90K miles on it now. The first one I had I installed in my lease truck and replaced it with the original before turning it in. Unfortunately the first one was not for the 8.5" rearend but that one had 33K miles on it (swapped at around 3000 miles on the 36K lease).

I did also contact Eaton in 2012 for oil recommendations and at that time they recommended a good mineral oil as opposed to a synthetic. I guess it's obvious but no GM additive needed because the TrueTrac does not have clutches.



 
454cid 
Valued Contributor
Posts: 2863
454cid
Age: 45
Loc: West Michigan
Reg: 02-18-12
12-27-17 03:16 PM - Post#2719143    
    In response to toro455

  • toro455 Said:
...no GM additive needed because the TrueTrac does not have clutches.



No additive is needed for the G80 either, in fact there is a TSB saying not to use additives. If there is a GM additive it's not for trucks.


99 K3500 RCLB


 
toro455 
"3rd Year" Silver Supporting Member
Posts: 463
toro455
Loc: Western NY
Reg: 06-15-02
12-27-17 03:59 PM - Post#2719148    
    In response to 454cid

Good point. I was thinking as opposed to what I would consider the other traditional aftermarket street replacement solution. Before I found out about the TrueTrac I was using Auburn's clutched product which has never let me down but I like the TrueTrac better.



 
4dr 57 
Valued Contributor
Posts: 4523
4dr 57
Loc: Texas Hill Country
Reg: 11-10-04
12-28-17 03:08 AM - Post#2719182    
    In response to dbwinburn

  • dbwinburn Said:
We can close this one up. I’m getting the Detroit true track. That should ship tomorrow.




Guess I will assume the install kit comes with it as it's not a swap kind of thing is it?




 
toro455 
"3rd Year" Silver Supporting Member
Posts: 463
toro455
Loc: Western NY
Reg: 06-15-02
12-28-17 01:13 PM - Post#2719225    
    In response to 4dr 57

None that I've purchased came with an installation kit. I've been buying installation parts from Ratech. This is a good link showing what GM kits they have and what they include:
http://www.ratechmfg.com/gmstandard.htm



Edited by toro455 on 12-31-17 08:59 AM. Reason for edit: No reason given.

 
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