Gm G20? - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Axle Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old March 24th, 2008, 12:22 PM   #1
Disturban
Senior Member
 
Disturban's Avatar
 
Join Date: 02-28-08
Location: Lowell, MI
Posts: 2,794
iTrader: (2)
Mentioned: 0 Post(s)
Default Gm G20?

Is the G20 a limited slip or is it actually a locking diff?
Disturban is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old March 24th, 2008, 12:24 PM   #2
kevinr839
Senior Member
 
kevinr839's Avatar
 
Join Date: 03-19-06
Location: petersburg, MI
Posts: 843
iTrader: (3)
Mentioned: 0 Post(s)
Default

Are you talking about a G20 van rearend? What year?
kevinr839 is offline   Reply With Quote
Old March 24th, 2008, 01:08 PM   #3
Disturban
Senior Member
 
Disturban's Avatar
 
Join Date: 02-28-08
Location: Lowell, MI
Posts: 2,794
iTrader: (2)
Mentioned: 0 Post(s)
Default

I ment the g80...sorry. RPO code.
Disturban is offline   Reply With Quote
Old March 24th, 2008, 01:16 PM   #4
Bishop
Senior Member
 
Bishop's Avatar
 
Join Date: 04-12-07
Location: brighton, atlanta, MI
Posts: 3,590
iTrader: (15)
Mentioned: 0 Post(s)
Send a message via AIM to Bishop
Default

both

http://youtube.com/watch?v=y6_kOlUXYoI
Bishop is offline   Reply With Quote
Old March 24th, 2008, 01:32 PM   #5
Tranny Tom
Switcheroo
 
Tranny Tom's Avatar
 
Join Date: 10-13-06
Location: Southfield
Posts: 3,861
iTrader: (55)
Mentioned: 15 Post(s)
Default

It's a mixture of both called a gov lock. it's pretty much a piece of crap.
Tranny Tom is offline   Reply With Quote
Old March 24th, 2008, 01:33 PM   #6
Kodiak450r
Keep on truckin
 
Kodiak450r's Avatar
 
Join Date: 11-14-07
Location: Waterford, MI
Posts: 5,911
iTrader: (19)
Mentioned: 1 Post(s)
Default

depends on the application and year. in cars it's a limited slip/posi. in trucks it's a mechanical locker. G80 locker

G80 Posi
Kodiak450r is offline   Reply With Quote
Old March 24th, 2008, 01:44 PM   #7
PavementPounder
I am the law.
 
PavementPounder's Avatar
 
Join Date: 11-05-05
Location: Birmingham, Michigan 48009
Posts: 29,824
iTrader: (224)
Mentioned: 2 Post(s)
Default

It locks up, but its not the same as a traditional locker, as it does not stay locked. It requires you to get it spinning before it will engage.




Oh, snapple - 18k!
PavementPounder is offline   Reply With Quote
Old March 25th, 2008, 01:06 PM   #8
Bishop
Senior Member
 
Bishop's Avatar
 
Join Date: 04-12-07
Location: brighton, atlanta, MI
Posts: 3,590
iTrader: (15)
Mentioned: 0 Post(s)
Send a message via AIM to Bishop
Default

i had the g80 locker in my pickup and never had any problems with it, and i always read that they are junk but know one can tell me why...
anybody know???
Bishop is offline   Reply With Quote
Old March 25th, 2008, 01:21 PM   #9
Kodiak450r
Keep on truckin
 
Kodiak450r's Avatar
 
Join Date: 11-14-07
Location: Waterford, MI
Posts: 5,911
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by wrifrocks2005 View Post
i had the g80 locker in my pickup and never had any problems with it, and i always read that they are junk but know one can tell me why...
anybody know???
because of the design they engage when under load from one wheel spinning 100 Rpm faster then the other. this fast harsh engagement will chip the teeth on the spider gears and the locking mechanism. eventually they blow apart the locking mechanism or completely eat away the spider gear teeth.
Kodiak450r is offline   Reply With Quote
Old March 25th, 2008, 08:51 PM   #10
Bishop
Senior Member
 
Bishop's Avatar
 
Join Date: 04-12-07
Location: brighton, atlanta, MI
Posts: 3,590
iTrader: (15)
Mentioned: 0 Post(s)
Send a message via AIM to Bishop
Default

Quote:
Originally Posted by Kodiak450r View Post
because of the design they engage when under load from one wheel spinning 100 Rpm faster then the other. this fast harsh engagement will chip the teeth on the spider gears and the locking mechanism. eventually they blow apart the locking mechanism or completely eat away the spider gear teeth.

hmmm interesting. ive got just about 200,000 miles on mine and had the cover off last fall and everythink look awesome in there.
i wonder if its just certain ones that fail.
Bishop is offline   Reply With Quote
Old March 25th, 2008, 09:10 PM   #11
Kodiak450r
Keep on truckin
 
Kodiak450r's Avatar
 
Join Date: 11-14-07
Location: Waterford, MI
Posts: 5,911
iTrader: (19)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by wrifrocks2005 View Post
hmmm interesting. ive got just about 200,000 miles on mine and had the cover off last fall and everythink look awesome in there.
i wonder if its just certain ones that fail.
it depends on useage and how often it engages. the chevy dealer i used to work at we took care of oakland county cop trucks and they love to blow up on them completly. heres a few pics of what typically happens.
Kodiak450r is offline   Reply With Quote
Old March 25th, 2008, 09:13 PM   #12
Kodiak450r
Keep on truckin
 
Kodiak450r's Avatar
 
Join Date: 11-14-07
Location: Waterford, MI
Posts: 5,911
iTrader: (19)
Mentioned: 1 Post(s)
Default

this is really bad
Kodiak450r is offline   Reply With Quote
Old March 25th, 2008, 09:17 PM   #13
greenjeep
Senior Member
 
greenjeep's Avatar
 
Join Date: 01-03-06
Location: Wateford, MI
Posts: 393
iTrader: (7)
Mentioned: 0 Post(s)
Default

I have witnessed the blown apart case on my buddies 94 burb.
greenjeep is offline   Reply With Quote
Old March 25th, 2008, 10:46 PM   #14
Bishop
Senior Member
 
Bishop's Avatar
 
Join Date: 04-12-07
Location: brighton, atlanta, MI
Posts: 3,590
iTrader: (15)
Mentioned: 0 Post(s)
Send a message via AIM to Bishop
Default

Quote:
Originally Posted by Kodiak450r View Post
this is really bad
man thats awesome. those must really abused by the cops!
Bishop is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Axle Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:01 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.16843 seconds with 62 queries