Is it possible?? Ebay auction??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**68350** · 09-05-2007, 09:52 PM

Was front positraction axle an option in 1972?? Look at this blazer on ebay
http://cgi.ebay.com/ebaymotors/1972-...QQcmdZViewItem

1LoC10 · 09-05-2007, 09:55 PM

4 wheel drive would be all 4 wheels, sooooo in a sense it would be a posi fron and back, no?

1969k10stepside · 09-05-2007, 10:10 PM

There is a member a little north of me with a 69 K20 that has factory 4:56 lockers front and rear so I would assume you could get front posi as a option..It would be listed on the glovebox if dealer installed.

Rod · 09-05-2007, 10:15 PM

Yep, posi was option..it was typically in the ratio 3.73 in 1/2 ton dana's or 4.56 front of the dana in 3/4 tons.

1969k10stepside · 09-05-2007, 10:24 PM

Quote:

Originally Posted by 1LoC10

4 wheel drive would be all 4 wheels, sooooo in a sense it would be a posi fron and back, no?

Stock they were open differentials...Posi or lockers could be dealer ordered for more traction but really,unless ordered with Posi or Lockers,they werent true 4wd...

boundstaffpress · 09-05-2007, 11:25 PM

My 67 has front posi. here is the glove box label.

**68350** · 09-05-2007, 11:34 PM

the only reason i asked is cause i have NEVER seen front positraction on a spid label, and all the posi pickups i have ever seen have only had rear positraction. thanks for the input

O'l Buck · 09-06-2007, 12:23 AM

I can't remember the option number, but the "no spin" option called for a Detroit Locker in the rear, and I've been told the Detroit Locker in the front axle was a dealer installed option. My 67 K-20 has both lockers in 4.56 gears. It also has a little decal behind the seat above the tank that explains a little about the lockers.

Blazer1970 · 09-06-2007, 06:45 AM

Quote:

Originally Posted by 68350

the only reason i asked is cause i have NEVER seen front positraction on a spid label, and all the posi pickups i have ever seen have only had rear positraction. thanks for the input

I have seen several SPIDs posted here over the years that list front limited slip. It was definitely a factory option.

gotchevys? · 09-06-2007, 03:37 PM

He shows the glovebox label in his auction pictures. If you look carefully on the left side 4th line down it says posi traction axle and on the right hand side on the very bottom it says frt. axle posi tract.

1969 GMC · 09-06-2007, 06:30 PM

I don't think these trucks had factory "lockers" up front...at least I've never seen that. Rear, yes. A positraction, or posi, is NOT a locker.

What I am curious about is what type of posi the factory unit is. Power or track lock?

**jerry moss** · 09-06-2007, 07:50 PM

i had a 71 chevy 1/2 ton 4x4 with front posi from the factory, option number on my glovebox was 9501AA. that axle is now under my 72 super.

09-05-2007, 09:52 PM	#1
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Is it possible?? Ebay auction??? Was front positraction axle an option in 1972?? Look at this blazer on ebay http://cgi.ebay.com/ebaymotors/1972-...QQcmdZViewItem __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

09-05-2007, 09:55 PM	#2
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: Is it possible?? Ebay auction??? 4 wheel drive would be all 4 wheels, sooooo in a sense it would be a posi fron and back, no? __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

09-05-2007, 10:10 PM	#3
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: Is it possible?? Ebay auction??? There is a member a little north of me with a 69 K20 that has factory 4:56 lockers front and rear so I would assume you could get front posi as a option..It would be listed on the glovebox if dealer installed. Last edited by 1969k10stepside; 09-05-2007 at 10:22 PM.

09-05-2007, 10:15 PM	#4
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Is it possible?? Ebay auction??? Yep, posi was option..it was typically in the ratio 3.73 in 1/2 ton dana's or 4.56 front of the dana in 3/4 tons. Last edited by Rod; 09-05-2007 at 10:16 PM.

09-05-2007, 11:25 PM	#6
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: Is it possible?? Ebay auction??? My 67 has front posi. here is the glove box label. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis

09-05-2007, 11:34 PM	#7
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Re: Is it possible?? Ebay auction??? the only reason i asked is cause i have NEVER seen front positraction on a spid label, and all the posi pickups i have ever seen have only had rear positraction. thanks for the input __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

09-06-2007, 12:23 AM	#8
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	Re: Is it possible?? Ebay auction??? I can't remember the option number, but the "no spin" option called for a Detroit Locker in the rear, and I've been told the Detroit Locker in the front axle was a dealer installed option. My 67 K-20 has both lockers in 4.56 gears. It also has a little decal behind the seat above the tank that explains a little about the lockers. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

09-06-2007, 03:37 PM	#10
gotchevys? Registered User Join Date: Dec 2006 Location: Virginia Posts: 118	Re: Is it possible?? Ebay auction??? He shows the glovebox label in his auction pictures. If you look carefully on the left side 4th line down it says posi traction axle and on the right hand side on the very bottom it says frt. axle posi tract. __________________ www.fatdaddieshotrods.com

09-06-2007, 06:30 PM	#11
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: Is it possible?? Ebay auction??? I don't think these trucks had factory "lockers" up front...at least I've never seen that. Rear, yes. A positraction, or posi, is NOT a locker. What I am curious about is what type of posi the factory unit is. Power or track lock? __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

09-06-2007, 07:50 PM	#12
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	Re: Is it possible?? Ebay auction??? i had a 71 chevy 1/2 ton 4x4 with front posi from the factory, option number on my glovebox was 9501AA. that axle is now under my 72 super. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA



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