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.

**911** Spring pins

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by wayne, Oct 14, 2001.

  1. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Putting on the pins the nuts are mushrooming and messed up the pin before I hit 50 pounds of torque. I have a spare set but how do I keep the nut from mushrooming. They are supposed to be torqued to 90 pounds.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  2. Storm Trooper

    Storm Trooper 1/2 ton status GMOTM Winner

    Joined:
    Nov 24, 2000
    Posts:
    4,640
    Likes Received:
    1
    Location:
    Dillon Colorado, Hang'in in the mountains. Renting
    Are you talking "spring bolts"?
    If so, are the sleeves long enough?????

    [​IMG]<font color=red>[/b]"Rid'in HigH in my K5"[​IMG]
    ....[​IMG]<font color=blue>[/b]"8" Lift -<font color=purple>38.5's"[​IMG]....
     
  3. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    No this is the spring pin that goes through the center and holds the pack togeather. There is no washer on them and there is not supposed to be.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  4. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    BTW I am using ORD's 1" zero rates.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  5. chevyracing

    chevyracing 1/2 ton status

    Joined:
    Sep 8, 2001
    Posts:
    2,589
    Likes Received:
    0
    Location:
    Colorado
    This is a guess and a guess only but it is something to think about. Maybe a grade 10 hardened nut will solve the problem. Sounds like the nut is too soft.

    John

    Like to go sloppin' 'round in da mud in a rapid fashion....=) [​IMG]
     
  6. K5RON

    K5RON 1/2 ton status

    Joined:
    Apr 14, 2001
    Posts:
    219
    Likes Received:
    0
    Wow, 90 POUNDS, aren't they 3/8" fine thread? Which is supposed to be around 30 ft/lbs


    Ron


    '84 K5......Tree Fitty, SM465/Np205, D44/14BFF, Pro-jection! .....and of coarse no other color than Odie!
     
  7. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Ya but many people have put the zero rates in and I never heard of this problem. Also used one off my Procomp pins and it is starting to do the same thing so I stopped before screwing that pin up too.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  8. Storm Trooper

    Storm Trooper 1/2 ton status GMOTM Winner

    Joined:
    Nov 24, 2000
    Posts:
    4,640
    Likes Received:
    1
    Location:
    Dillon Colorado, Hang'in in the mountains. Renting
    Sounds like cheap bolts. Are you sure your torque wrench is working right?
    Did you post this on the ORD forum also?
    Somethings not right. sorry I couldn't be more help.
    Got to go work on my slidders, good luck.

    [​IMG]<font color=red>[/b]"Rid'in HigH in my K5"[​IMG]
    ....[​IMG]<font color=blue>[/b]"8" Lift -<font color=purple>38.5's"[​IMG]....
     
  9. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    According to my book they say 90 for a 4x4 rear spring.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  10. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Torque wrench is a brand new Craftsman. I used it the other day on my 14ff and it was fine.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  11. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    In another post Grim said 45 pounds is enough for the pin but the book said 90 so I will listen to Grim and go with 45. I trust him more then the book anyway.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  12. K5RON

    K5RON 1/2 ton status

    Joined:
    Apr 14, 2001
    Posts:
    219
    Likes Received:
    0
    Just checked the FSM '84, it has no torque spec for the center pin. Only torque specs for the eye bolts, which one is in fact 90 ft/lbs.

    Maybe it's a typo!

    P.S. I never really torqued a centering pin, just tighened it up.


    Ron


    '84 K5......Tree Fitty, SM465/Np205, D44/14BFF, Pro-jection! .....and of coarse no other color than Odie!
     
  13. hammer

    hammer 1/2 ton status

    Joined:
    Aug 29, 2001
    Posts:
    449
    Likes Received:
    0
    Location:
    Binghamton N.Y.
    I didn't torque my center pin only enough to hold them together until you get the u bolts and the plate on the rearend. Then torque the 4 nuts to 90 lbs
     
  14. thatK30guy

    thatK30guy 1 ton status Premium Member

    Joined:
    Jan 12, 2001
    Posts:
    32,076
    Likes Received:
    55
    Location:
    .
    Wayne, I have done quite a few center pins and they do not require a torque reading of 90 ft. lbs.

    I have just tightened them down snug.

    That 90 ft. lbs. reading sounds like the u-bolts instead.


    <font color=red>I'm a "black top mudder"!!!</font color=red>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  15. chvyhs

    chvyhs 1/2 ton status

    Joined:
    Feb 12, 2001
    Posts:
    1,469
    Likes Received:
    0
    Location:
    Murrieta, California
    I put those pins in a couple of months ago. I got them from NAPA. I think I just PFT'ed them (pretty f-in tight). Haven't had a problem with them since. Good Luck.
     
  16. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Fot the u-bolt they show 140-150. I just took them to 45 and it seems to be fine now. Thanks.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  17. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

    Joined:
    Feb 17, 2000
    Posts:
    7,385
    Likes Received:
    0
    Location:
    Atlanta
    3/8s bolt at 90lb? Uhhh that's a miss print. a Grade 8 3/8 (9/16 head/wrench) is usualy no more than 50lb I usualy got 45. Grade 5 is like 35lb. Grade 2 is like 25ftlb. 5/8 (3/4 head size) is usualy were you start hitting high torq values like 90lb.
    Your taking a C clamp and holding the leaves together and tight when your putting it in right? That pin only needs to be tightenough to keep the pack togethere and be tight once you get everything sandwiched betwwn the axle and the top plate. after that it just keeps the pack centered and the U'bolts keep it tight.

    Women dig dents and flat paint!
    <a target="_blank" href=http://communities.msn.com/OffroadK5s>communities.msn.com/OffroadK5s</a>
    75 Jimmy, Dollar
    Grim-Reaper
     
  18. wayne

    wayne 3/4 ton status

    Joined:
    Feb 1, 2001
    Posts:
    6,178
    Likes Received:
    0
    Location:
    Carlisle, Pa
    Yep I had it clamped and just went to 45 pounds like you said to do. Worked fine. I thought 90 seemed a bit on the high side but I never replaced a set of pins before and now I know not to do that again.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  19. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

    Joined:
    Feb 17, 2000
    Posts:
    7,385
    Likes Received:
    0
    Location:
    Atlanta
    Hehe sounds like your doing an all night wrench fest LOL.

    Women dig dents and flat paint!
    <a target="_blank" href=http://communities.msn.com/OffroadK5s>communities.msn.com/OffroadK5s</a>
    75 Jimmy, Dollar
    Grim-Reaper
     
  20. fr8train

    fr8train 1/2 ton status

    Joined:
    Aug 2, 2000
    Posts:
    1,712
    Likes Received:
    0
    Location:
    Maryland
    Wayne I just used some grade 8 bolts and ground the sides down to fit in the pad holes. I left enough grip on the bolt heads to actually take them back off again. Also used blue lock tight on them.

    <a target="_blank" href=http://community.webshots.com/user/thatguydrew23>http://community.webshots.com/user/thatguydrew23</a>
     

Share This Page