|
|
|
03-04-2013, 03:20 PM
|
#1 |
|
Registered User
Join Date: Aug 2003
Location: oregon
Posts: 54
|
12 bolt question
Can someone explain what I'm looking at here? I don't see this mechanism in any exploded views.
The ring gear has 34 teeth and turning the wheel 2 turns gets about a 3:40:1 ratio, it's in a '70s c10 2 wheel drive. |
|
|
|
03-04-2013, 03:33 PM
|
#2 |
|
Registered User
Join Date: Sep 2008
Location: Bailey, NC
Posts: 2,462
|
Re: 12 bolt question
It's an Eaton factory posi locker carrier.
__________________
Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT |
|
|
|
|
03-04-2013, 03:56 PM
|
#3 |
|
Registered User
Join Date: Aug 2003
Location: oregon
Posts: 54
|
Re: 12 bolt question
Where are the clutches?
I found these #s on the ring gear 6270998 10:34 GM 9 782 Can't find the 3:40 ratio listed anywhere, this is all new to me so please excuse my ignorance. |
|
|
|
|
03-04-2013, 09:47 PM
|
#4 | |
|
Registered User
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
|
Re: 12 bolt question
Quote:
__________________
2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB |
|
|
|
|
|
03-04-2013, 05:02 PM
|
#5 |
|
Registered User
Join Date: Aug 2003
Location: oregon
Posts: 54
|
Re: 12 bolt question
I should have posted in "engine and drive train" If a mod can move would be grateful
ThanksMark |
|
|
|
|
03-04-2013, 05:33 PM
|
#6 |
|
Registered User
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
|
Re: 12 bolt question
It isn't a clutch-type traction device. HERE:
__________________
Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96 |
|
|
|
|
03-04-2013, 07:42 PM
|
#7 |
|
Registered User
Join Date: Aug 2003
Location: oregon
Posts: 54
|
Re: 12 bolt question
Thanks Devin
|
|
|
|
|
03-04-2013, 09:22 PM
|
#8 | |
|
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
|
Re: 12 bolt question
That's the "replacement" for the original clutch-type "posi-traction" that GM used in the earlier years. It is known as "Gov-loc". Option code G80.
Despite the word loc in the name, it is not a locking differential. It is a clutch-type posi-traction unit that is "self-adjusting". It acts like an open differential until one wheel spins faster than the other. Then the mechanism engages the clutches, giving traction to both wheels. They are not very strong. In a completely stock truck, driven normally, it may be ok. If you intend any heavier use, it is advisable to remove it.
__________________
You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
|
|
|
|
|
|
03-04-2013, 09:11 PM
|
#9 |
|
Registered User
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
|
Re: 12 bolt question
No problem, I hope that helped answer your question. It is referred to as a "G80", the RPO code used to order/purchase it.
__________________
Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96 |
|
|
|
|
03-04-2013, 09:41 PM
|
#10 |
|
Registered User
Join Date: Aug 2003
Location: oregon
Posts: 54
|
Re: 12 bolt question
Thanks for your help Longhair Jeramy and Devin
You've given me the info and links I need to make a decision as to put this in my '77 swb stock 350/350 Mark |
|
|
|
 |
| Bookmarks |
|
|
Hybrid Mode
