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.

SM465 problem

Discussion in 'The Garage' started by fordeater, Oct 7, 2005.

  1. fordeater

    fordeater 1/2 ton status Premium Member

    Joined:
    Mar 21, 2004
    Posts:
    1,402
    Likes Received:
    0
    Location:
    Missoula, Montana
    Well, i can't get my tranny into 3rd gear. It is an 83 GMC 3/4 ton pickup in case anybody wonders. I was driving the other night and it just wouldn't go into gear, and i haven't been able to get it in gear since. I can go through the other gears no problem, but not 3rd. I tried shifting into 3rd with the truck off just parked too and it still won't go. I'm thinking something in the shift rails, but i'm not sure. Anybody have any ideas?
     
  2. 79k20350

    79k20350 3/4 ton status

    Joined:
    Nov 22, 2004
    Posts:
    7,757
    Likes Received:
    1
    Location:
    Ct
    this is a very common problem w/ these tranny's. the third gear syncro is prolly shot along w/ the snap rings that keep the gears seperated
     
  3. pvfjr

    pvfjr 1/2 ton status

    Joined:
    Feb 10, 2004
    Posts:
    2,425
    Likes Received:
    0
    Location:
    Oakridge, OR
    http://www.anaheimgear.com/update.htm

    Read the last section, it's about the 465's and the third gear problem. Give these guys a call, they can get you straightened out.

    And you're close to Allan....
    If he doesn't have one, then I've got a spare 465 or two I can sell.
     
  4. mountainexplorer

    mountainexplorer 1/2 ton status

    Joined:
    Nov 14, 2001
    Posts:
    4,903
    Likes Received:
    0
    Location:
    Spokane, Wa./Ione, Wa
    The one he's having problems with came from me. :crazy:

    It drove fine in the Crew Cab it came out of... I'm just wondering if it's a shifter fork issue. I've had a tranny that jammed IN 3rd gear before and wouldn't come out... and dealt with a few others that didn't want to shift. Just replaced the entire top with different shifter forks/rails and that solved it.

    I've had others that would grind going into 3rd gear, 4th gear, or even 2nd gear... but not completely refuse to go into a gear.
     
  5. skelly1

    skelly1 1/2 ton status

    Joined:
    Sep 2, 2002
    Posts:
    554
    Likes Received:
    0
    Location:
    San Diego, CA
    Not to hi-jack, but what's it cost typically to have an SM465 rebuilt?
     
  6. mtnman

    mtnman Scrap metal fabricator Premium Member

    Joined:
    Sep 8, 2005
    Posts:
    2,087
    Likes Received:
    31
    Location:
    On the farm , Missouri
    The shift fork could be worn down to the point rthat it wont push the gears far enough. I had the EXACT same prob a couple o years ago and that was what it was (just swapped trans top/shift forks)
     

Share This Page