GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Default rear axle rpo code

    My 85 C10 rear axle code is GQ1. which when looked up is standard ratio. Does any one know what std. ratio is?

  2. #2

    Default

    GQ1 means you have a standard rear end with no traction adder. Look for another rpo code in the glove box for the ratio. It usually starts with GU or GT:
    GU2 2:73 ratio

    GU4 3: 08 ratio

    GU5 3:23 ratio

    GU6 3:42 ratio

    GT4 3:73 ratio

    GT5 4:10 ratio

    GQ1 Open Differential Rear Axle

    G80 Positraction/Locking Rear Axle

    Bobby - North Carolina
    2008 4x4 5.3L V8
    6" Suspension Lift and 1.5" Body Lift
    20x9 Ballistic Jesters w/35" Toyo Open Country MT's & 1.5" rear wheel spacers
    4:56 Yukon Gears
    Hypertech Speedometer Calibrator
    Baja style bed mount spare tire carrier
    Flowmaster 40 series dual exhaust
    Recon Smoked LED tails/3rd brake lights/black projectors w/switchback LED's in the corners
    N-Fab Nerf Steps
    K&N CAI
    No Fear Pedals
    Tint, Line-X bedliner, Window visors, Rear wheel well liners
    Painted front grill, bow ties and door badges, de-"lettered" tailgate
    Powder coated front and rear bumpers

Similar Threads

  1. 99-04 Chevy Truck Silverado Rear Rear Axle Shaft
    By Steve in forum Chevy Parts eBay
    Replies: 0
    Last Post: 05-26-2010, 03:40 PM
  2. rear axle rpo code
    By david mac in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 1
    Last Post: 03-01-2010, 01:40 PM
  3. 99-04 Chevy Truck Silverado Rear Rear Axle Shaft
    By Steve in forum Chevy Parts eBay
    Replies: 0
    Last Post: 12-30-2009, 09:10 PM
  4. axle code question
    By InMyChevyVan in forum General Chevy & GM Tech Questions
    Replies: 7
    Last Post: 07-27-2009, 08:19 AM
  5. Wierd rear brake valve linked to rear axle housing..what is it?
    By Big6ft6 in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 11
    Last Post: 01-31-2008, 01:56 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •