Try plugging the VIN in here https://chevroletforum.com/forum/vindecoder.php. The equipment seems to all be listed out. But a shot of the RPO sticker is def another sure way to tell.
GM fullsize AWD Van Info thread
- Thread starter boardrider247
- Start date
vintageracer
To Infinity and Beyond!
I cant even tell if my own rig has a G80 locker. I am missing the glove box so no RPO codes
The SPID is not in the glove box.
On a GM van look on the right front passenger door below the door latch mechanism in the jamb of the DOOR for the SPID sticker which will list the option codes.
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The G80 limited slip has nothing to do with ABS or traction control. It is completely mechanical.
Scotty D
Active member
You are correct! Not sure how I was so misinformed. If mine does not have one, I would like to find one and put it in.
vintageracer
To Infinity and Beyond!
The factory G80 option is a "Limited Slip" type of traction device installed in the center carrier of the rear-end. It operates with clutch type friction materials engaging in the carrier and therefore is not directly mechanical in operation. They are OK however there is better.
Eaton makes several other choices for a true mechanical engaging type of rear carrier. There is the venerable "Eaton Detroit Locker" which is totally mechanical and basically ON/OFF. I used one for years in my Vintage Race Cars. Eaton also offers the "Tru-Trac" type of carrier which is mechanical in operation with conical gears. Eaton also offers an electric locking carrier similar to ARB however electrically operated versus air operation. Eaton also has a "Clutch type" rear carrier which is like the factory G80 option.
When checking applications for my van all were available. Amazingly my van did not have the factory G80 option so I installed a Eaton "Tru-Trac" carrier in my van. Mechanical option that works great and not as ON/OFF and is much smoother in operation than the Detroit Locker.
Below is a picture of the location I have seen most later model GM van SPID stickers.
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stuntman mike
New member
Hey Gang! I'm not ready to start my own build thread yet as I'm still researching and parts collecting for my newly aquired 2014 AWD Express. I'm currently tire shopping and considering my needs and options. How many folks maintain a 5 wheel rotation? As I'll be upsizing my wheels, a stock spare will be bad news. So if I'm going to spend the money on a fullsize 5th, I might as well utilize it, right?