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GM Van RPO list

Discussion in 'Chevy Express Forum (GMC Savana)' started by cntinuum, Oct 24, 2013.

  1. cntinuum

    cntinuum New Member

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    I was looking in the JY for a new rear end for my truck. Trucks have their RPO list in the glove box. When I was looking in vans, they didn't have glove boxes and I couldn't find the label with the RPO's for the vehicle. Is there one like in the trucks?
    Thanks,
    -Dave
    #1
  2. 01SilveradoBeast

    01SilveradoBeast New Member

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    Did you check the driver's door jam?
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  3. 99'HEARTBEAT

    99'HEARTBEAT Moderator

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    Welcome To The Site Dave......On some of the Chevy/GM Vans the SPID"Service Parts Identification Tag" with the RPO Codes, will be Located on one of the Plastic Storage Covers in the Rear of the Vehicle.
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  4. cntinuum

    cntinuum New Member

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    Thanks for the information Mike. I found this forum when I did a search on forums GM vans. When I had a Trailblazer the trailvoy forum that "migrated" to gmtnation.com was the best place for Trailblazer information. I have not found a forum that good for my GMC. Maybe it is here.

    I am running on the assumption that like years for GM trucks, vans and surburban all sit on the same frame and the axles will interchange. Is that correct?
    Thanks,
    -Dave
    #4
  5. cntinuum

    cntinuum New Member

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    Well after reading for days and not finding much information on this topic on this site, I have found I have been under a misconception. Pickups, Suburbans, and Vans are not all the same rearend wise. From the site http://www.billavista.com, the G30 vans have the widest rear ends for 14 bolts. Therefor not a candidate for a swap under a C2500 chassis with utility box, maybe. They are 2.5" wider from Wheel Mounting Surfaces. The site doesn't talk about spring perk location for van rear axles.

    I would like to get the wider drums if I make a swap. That seems to be on 1 ton axles which all have 40.5 spring perch spacing compared to 42.5 for the 3/4T.
    #5

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