Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Stock Gearing GM 10-Bolt

Discussion in 'The Garage' started by prossett, Dec 2, 2005.

  1. prossett

    prossett 1/2 ton status

    Joined:
    Sep 29, 2005
    Posts:
    165
    Likes Received:
    0
    Location:
    United Arab Emirates
    What is the stock gearing on a 1983 Jimmy GM 10-bolt?
     
  2. divorced

    divorced 3/4 ton status

    Joined:
    Jul 20, 2004
    Posts:
    5,115
    Likes Received:
    0
    Location:
    .
    It really depends. You can look in the glove box and get the RPO code to find out what is stock. It's always possible it could have been changed through the years if you bought it used.
     
  3. stockk5

    stockk5 1/2 ton status Premium Member

    Joined:
    Apr 13, 2004
    Posts:
    2,037
    Likes Received:
    73
    Location:
    Cromwell, CT
    there are many different gear ratios... from 3:08 up to 3:73 it seems from the factory. best thing to do is pop the diff cover and spin the tires till u see the numbers on the big ring gear. then.. use this chart and you could easily figure it out
    http://www.pavementsucks.com/forums/viewtopic.php?topic=56143
     
  4. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
    Posts:
    16,217
    Likes Received:
    1
    Location:
    Mesa , Arizona USA
    Heres what was offered with what drivetrains . Bear in mind some strange combos can , and did , come off the assembly line . Just depends on who pushed the order through .

    [​IMG]
     
  5. sweetk30

    sweetk30 professional hooker Premium Member

    Joined:
    Nov 1, 2004
    Posts:
    25,545
    Likes Received:
    540
    Location:
    horseheads , ny 14845
    i had a factory v8 with 3.42 in late 70s . that chart is good idea but not exactly true. thay help but dont forget the assembly line factor.

    bet 3.08 as most i have seen.
     
  6. trailblazr81

    trailblazr81 1/2 ton status

    Joined:
    May 27, 2005
    Posts:
    931
    Likes Received:
    0
    Location:
    Hollister, CA
    Im betting 3.08's if its a TH350. Woo-Hoo!!!
    If its a 700R4 I'm guessing 3.73.

    Now wheres my magic 8 ball?? :haha: :haha: :haha:
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,980
    Likes Received:
    189
    Location:
    Roy WA
    FYI on the drivetrain combos: they are EPA certified and there is no way that anything other than a certified combo came off the assembly line for anything other than experimental vehicles.

    That doesn't mean that printing errors were not made and you can't find service manuals or brochures that show things that weren't available, or don't show things that were produced, but the rule is, EPA certified or it didn't exist.

    That is MUCH more prevalent on the later stuff because emissions controls/CAFE got extremely strict (compared to the 60's for instance) so offering huge varieties of ratios, transmission, and engines doesn't make sense from a cost standpoint on multiple fronts.

    I know it's neat to think that some cooler than cool combo came off the line (454 K5 for instance) but it just couldn't happen.
     

Share This Page