posi traction - The 1947 - Present Chevrolet & GMC Truck Message Board Network

daniel1 · 09-30-2008, 07:01 PM

i was wondering if any of our trucks would have came with posi and if so how can i tell if mine has it? thanks

slugish · 09-30-2008, 08:45 PM

dont think posi was an option in these years ( Imay be corected)

probably the easiest way to tell if you have one - do a burn out - 1 black mark ,no posi - 2 black marks yes posi

slugish · 09-30-2008, 08:46 PM

Where at in Va. are you from ?

piecesparts · 09-30-2008, 08:51 PM

You could order posi, if you wanted it. Especially in the 4 wheel drive trucks. I have two 2 wheel drive trucks that have 12 bolt posi units in them. One of them came out of a 4 X 4 pickup, the other came with the 12 bolt axle.

jrsmith_2010 · 09-30-2008, 08:57 PM

power brake it

**Captkaos** · 10-01-2008, 04:44 PM

yes limited slip (positraction) was an option (G80) on all the 73-87 trucks. 12 bolts had Eaton clutch type (LSD now) and the 10 bolts had a Gov lock. To see if the truck came with one, you would need the RPO list, to find out if it has one and know for 100% sure, you need to pull the diff cover.

Albatrossian · 10-01-2008, 04:54 PM

Or, put the truck on jackstands and check it that way

ont_guy_38 · 10-01-2008, 04:55 PM

Quote:

Originally Posted by Captkaos

yes limited slip (positraction) was an option (G80) on all the 73-87 trucks. 12 bolts had Eaton clutch type.

I have one of these from my dads truck that was bought new in 73 sitting in my garage . It was a 454,turbo 400 with the 12 bolt rear end

**Captkaos** · 10-01-2008, 05:07 PM

Quote:

Originally Posted by Albatrossian

Or, put the truck on jackstands and check it that way

If the clutches are worn this won't work.

jchav62 · 10-01-2008, 06:18 PM

My '73 has posi. I believe it says it in the build sticker. I tested it to make sure... It past the "two marks" test..

09-30-2008, 07:01 PM	#1
daniel1 Registered User Join Date: Aug 2007 Location: virginia Posts: 12	posi traction i was wondering if any of our trucks would have came with posi and if so how can i tell if mine has it? thanks

09-30-2008, 08:45 PM	#2
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: posi traction dont think posi was an option in these years ( Imay be corected) probably the easiest way to tell if you have one - do a burn out - 1 black mark ,no posi - 2 black marks yes posi

09-30-2008, 08:46 PM	#3
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: posi traction Where at in Va. are you from ?

09-30-2008, 08:51 PM	#4
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: posi traction You could order posi, if you wanted it. Especially in the 4 wheel drive trucks. I have two 2 wheel drive trucks that have 12 bolt posi units in them. One of them came out of a 4 X 4 pickup, the other came with the 12 bolt axle.

09-30-2008, 08:57 PM	#5
jrsmith_2010 I like turtles... Join Date: May 2008 Location: Kansas Posts: 993	Re: posi traction power brake it __________________ 1979 Silverado- lowered 5/7, 20 inch Boss rims, everything shaved, caddy lights, billet interior, UP FOR SALE! 1983 Scottsdale-on the back burner...SOLD!!! 1992 Silverado- extended cab, stock for now, but no promises SOLD!!! 2006 Chevy Cobalt-college car, staying stock Whatever can't get fixed with a hammer, a roll of duct tape, a clothes hanger, a tube of glue, and a case of beer, can wait until tomorrow.

10-01-2008, 04:44 PM	#6
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: posi traction yes limited slip (positraction) was an option (G80) on all the 73-87 trucks. 12 bolts had Eaton clutch type (LSD now) and the 10 bolts had a Gov lock. To see if the truck came with one, you would need the RPO list, to find out if it has one and know for 100% sure, you need to pull the diff cover. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

10-01-2008, 04:54 PM	#7
Albatrossian Georgia Boy Join Date: Jun 2008 Location: Douglas, Georgia Posts: 370	Re: posi traction Or, put the truck on jackstands and check it that way

10-01-2008, 06:18 PM	#10
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: posi traction My '73 has posi. I believe it says it in the build sticker. I tested it to make sure... It past the "two marks" test.. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4 Last edited by jchav62; 10-01-2008 at 06:19 PM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.