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 SF

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Monster, Dec 24, 2003.

  1. Monster

    Monster Registered Member

    Joined:
    Jun 14, 2002
    Posts:
    68
    Likes Received:
    0
    Location:
    New Jersey Warren county
    My 10 Bolt with 4.56 gears has broken 4 times on me. I dont off road so I thought it would be ok with 4.56 gears guess not? Now I have a 10 bolt thats no good that I put 0ver 2000 bucks into it.

    So I bought 14bolt SF and front 10bolt 8 Lug 4.10 gears for 500 dollars. It came from a 85 K20.
    I have a 86 K5----> 4"suspension,2"BodyLift,35Bfg,700-R4,StageoneShiftKit,300hp.

    My question is Will these bolt on and can I use the stock driveshaft or will I need a different one.????



    /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/mad.gif
     
  2. rick88blaze

    rick88blaze 1/2 ton status

    Joined:
    Jan 24, 2003
    Posts:
    2,342
    Likes Received:
    1
    Location:
    Knob Noster, Mo.
    the front you shouldn't have a problem with, you can even use your old calipers. the rear will pretty much be a straight bolt in also. you will need a conversion u-joint to go for the 10 bolt driveshaft yoke to the 14 bsf. the part # should be #447. This should be a NAPA part number. I'm not sure about your e-brake cables. they might be different. /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif

    Rick
     
  3. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

    Joined:
    Feb 7, 2001
    Posts:
    3,103
    Likes Received:
    0
    Location:
    Richmond, VA
    It will bolt in just fine. You will need the U-bolts and spring plates from the K20 for the rear axle. The Napa 447 or Neapco 2-1153 will be needed to convert your rear driveline. the p-brake cables that you have now will bolt up fine.

    The front will will be a bolt-in.

    Hope it helps,
    John
     
  4. zcarczar

    zcarczar 1/2 ton status

    Joined:
    Feb 10, 2002
    Posts:
    2,495
    Likes Received:
    0
    Location:
    Apple Valley California
    You could also buy a set of 6 lug axle shafts and drums for the 14 bolt SF and run the same wheels you have now. If you have a local machine shop you can see if they can redrill your current shafts then all you would have to do is swap on the 6 lug drums.
     
  5. 75-K5

    75-K5 3/4 ton status

    Joined:
    Apr 28, 2002
    Posts:
    5,353
    Likes Received:
    0
    Location:
    Anderson, Indiana
    [ QUOTE ]
    You could also buy a set of 6 lug axle shafts and drums for the 14 bolt FF and run the same wheels you have now

    [/ QUOTE ]

    Is this what you meant? /forums/images/graemlins/thumb.gif
     
  6. SUBFAN

    SUBFAN 1/2 ton status

    Joined:
    Mar 23, 2003
    Posts:
    2,334
    Likes Received:
    0
    Location:
    Davenport, Ia
    No....
     
  7. Monster

    Monster Registered Member

    Joined:
    Jun 14, 2002
    Posts:
    68
    Likes Received:
    0
    Location:
    New Jersey Warren county
    Thanks for the info guys.

    Did not think about changing the axls to 6 lug. Even if I did that my rims would be to small for the drums.

    Time for NEW rims and tires.!!! /forums/images/graemlins/laugh.gif /forums/images/graemlins/k5.gif
     
  8. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,097
    Likes Received:
    144
    Location:
    california
    [ QUOTE ]
    Thanks for the info guys.

    . Even if I did that my rims would be to small for the drums.

    Time for NEW rims and tires.!!! /forums/images/graemlins/laugh.gif /forums/images/graemlins/k5.gif

    [/ QUOTE ]
    No they wouldn't.
     
  9. 75-K5

    75-K5 3/4 ton status

    Joined:
    Apr 28, 2002
    Posts:
    5,353
    Likes Received:
    0
    Location:
    Anderson, Indiana
    [ QUOTE ]
    No....

    [/ QUOTE ]

    Oh, I thought 14bsf's were 6 lug...my bad /forums/images/graemlins/ignore.gif /forums/images/graemlins/rotfl.gif
     
  10. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,097
    Likes Received:
    144
    Location:
    california
    [ QUOTE ]
    [ QUOTE ]
    No....

    [/ QUOTE ]

    Oh, I thought 14bsf's were 6 lug...my bad /forums/images/graemlins/ignore.gif /forums/images/graemlins/rotfl.gif

    [/ QUOTE ]
    They came in both 6 and 8 lug versions... obviously the 6 lug version being more desirable.
     
  11. R72K5

    R72K5 Banned

    Joined:
    Mar 5, 2001
    Posts:
    8,905
    Likes Received:
    0
    Location:
    central IL
    6 lug ones started around '88 or '90 or somewhere in there,
     
  12. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,097
    Likes Received:
    144
    Location:
    california
    [ QUOTE ]
    6 lug ones started around '88 or '90 or somewhere in there,

    [/ QUOTE ]
    88'
     
  13. R72K5

    R72K5 Banned

    Joined:
    Mar 5, 2001
    Posts:
    8,905
    Likes Received:
    0
    Location:
    central IL
    [ QUOTE ]
    [ QUOTE ]
    6 lug ones started around '88 or '90 or somewhere in there,

    [/ QUOTE ]
    88'

    [/ QUOTE ]

    good deal /forums/images/graemlins/laugh.gif same year as the axle shafts on at least 10 bolts increased to 30 spline i believe, or was it 31 ?
     
  14. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,097
    Likes Received:
    144
    Location:
    california
    I believe they are 33 spline.
     
  15. 89GMCSuburban

    89GMCSuburban 1/2 ton status

    Joined:
    Nov 15, 2001
    Posts:
    3,005
    Likes Received:
    0
    Location:
    Thornton, CO
    10 bolts went from 28 to 30 starting in 88 in sparse numbers and all 89's should have them.
    14 SF have always been 33 spline
     
  16. R72K5

    R72K5 Banned

    Joined:
    Mar 5, 2001
    Posts:
    8,905
    Likes Received:
    0
    Location:
    central IL
    and i take it that FF stayed the same always too even after 87/88, what about 60s fronts and rears ? i know 60 rear changed splines a few times, and for different makes too
     
  17. 89GMCSuburban

    89GMCSuburban 1/2 ton status

    Joined:
    Nov 15, 2001
    Posts:
    3,005
    Likes Received:
    0
    Location:
    Thornton, CO
    FF 14 bolt has always been 30 spline.
    Dana 60's have many different spline counts and shaft thicknesses, some require crush sleeves on the pinion and some don't. D60's are a mixed bag, make to sure to use the Material number off of it to get parts.
     

Share This Page