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.

14 bolt ?

Discussion in 'The Garage' started by jk5blazer, Feb 2, 2005.

  1. jk5blazer

    jk5blazer 1/2 ton status

    Joined:
    Jan 28, 2005
    Posts:
    306
    Likes Received:
    0
    Location:
    Braselton, Ga
    What is the standard ratio for a 14 bolt. I got one free out of an 80's K30 van
    2wd. Unless I counted wrong the gear ratio in this one is 3.21 or so. That just dosen't sound right. Thanks for any responces.
     
  2. 79Stomper

    79Stomper 1/2 ton status Premium Member GMOTM Winner

    Joined:
    Mar 4, 2004
    Posts:
    4,225
    Likes Received:
    19
    Location:
    Forest, VA
    My van width out of a G20 ended up being 3:73 ratio. Good luck on cutting those old spring perches off those things are tough, or atleast mine was. Would recomend a plasm cutter if available.
     
  3. jk5blazer

    jk5blazer 1/2 ton status

    Joined:
    Jan 28, 2005
    Posts:
    306
    Likes Received:
    0
    Location:
    Braselton, Ga
    I was unaware that I had to cut the spring perches off. Cool something else to look forward to. Thanks for the info
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,982
    Likes Received:
    191
    Location:
    Roy WA
    No "standard" ratio for GM axles...there is a standard axle based on the particular application, but typically engine and or transmission differences will have different "standard" axle ratios. Sometimes federal vs. california emissions was a deciding factor as well. Very few GM vehicles had no options in drivetrain up until the newer stuff.

    Only things I can think of that had no optional stuff would be something "special" like an 80's Monte SS or 442...the engine, transmission, axles, and axle ratio were identical on every one produced for that year. Again emissions/destination might change some things with the carb or emissions components, but not therest of the drivetrain stuff.
     
  5. AkMudr

    AkMudr 1/2 ton status

    Joined:
    Dec 30, 2004
    Posts:
    917
    Likes Received:
    0
    Location:
    Alaska
    What #"s were stamped on the ring gar? That will also tell you the ratio.
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

    Joined:
    Nov 1, 2004
    Posts:
    25,555
    Likes Received:
    548
    Location:
    horseheads , ny 14845
    da van is wider and need to move all brackets and perches to fit a truck. but that meens no spacers to make tires same frt to rear. thats why we use them.
     
  7. 79Stomper

    79Stomper 1/2 ton status Premium Member GMOTM Winner

    Joined:
    Mar 4, 2004
    Posts:
    4,225
    Likes Received:
    19
    Location:
    Forest, VA
    Van widths are roughly 3" wider than a standard truck rear. I searched for a van width due to this and I wouldn't have to buy a set of spacers to get same track width front and rear.
     
  8. AkMudr

    AkMudr 1/2 ton status

    Joined:
    Dec 30, 2004
    Posts:
    917
    Likes Received:
    0
    Location:
    Alaska
    Bah BAM!

    Spacing
    [font=Arial, Helvetica, sans-serif]1-tons feature 40.5" perch spacing - whether C&C or pickup, whether SRW or DRW. 3/4-ton is 42.5" perch spacing. [/font]

    Width's
    [font=Arial, Helvetica, sans-serif]SRW 67.5" WMS-WMS

    DRW 72" WMS-WMS

    C&C 63.5" WMS-WMS

    VAN 70" WMS-WMS

    [/font][font=Arial, Helvetica, sans-serif][/font]
     
  9. KevinsK5

    KevinsK5 1/2 ton status Premium Member

    Joined:
    Jan 17, 2005
    Posts:
    257
    Likes Received:
    13
    Location:
    Golden, CO
    Correct me If I'm wrong, but I think the only gear ratios you could get in an 80's 14 bolt SF were 3.08, 3.42, 3.73, and 4.10. Maybe 4.56's???
     
  10. AkMudr

    AkMudr 1/2 ton status

    Joined:
    Dec 30, 2004
    Posts:
    917
    Likes Received:
    0
    Location:
    Alaska
    Wouldn't a 1ton 2wd van have a 14BFF? Eventhough its 2wd it still has a 1ton chassis. Ive seen a bunch of 1ton 2wd vans her ein VA as well as trucks which had 14bFF's
     
  11. 79Stomper

    79Stomper 1/2 ton status Premium Member GMOTM Winner

    Joined:
    Mar 4, 2004
    Posts:
    4,225
    Likes Received:
    19
    Location:
    Forest, VA
    Yep, most of them I have seen have had FF. I got a FF out of a G20 so I am sure the 1 ton would have them as well.
     
  12. jk5blazer

    jk5blazer 1/2 ton status

    Joined:
    Jan 28, 2005
    Posts:
    306
    Likes Received:
    0
    Location:
    Braselton, Ga
    Yeah it is a full 14 bolt ff. The ring gear count was 45 and the pinion was 14. It just didnt sound right. Thanks.
     

Share This Page