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.

Corp 14 bolt rear out of a 2 wd....

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by slayer77, Oct 21, 2003.

  1. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    Will this bolt right in to a 71K5?

    Thanks
     
  2. Don

    Don 1/2 ton status

    Joined:
    May 30, 2002
    Posts:
    1,778
    Likes Received:
    0
    Location:
    Spokane Washington
    You'll have to remove and relocate the spring perche's, and the shock mount's on the axle. Then it'll bolt right in.
     
  3. Beast388

    Beast388 1/2 ton status

    Joined:
    Nov 6, 2001
    Posts:
    3,039
    Likes Received:
    0
    Location:
    Clinton, IA USA
    [ QUOTE ]
    Will this bolt right in to a 71K5?

    Thanks

    [/ QUOTE ]

    Is the 14BFF out of a 3/4 ton or 1 ton?
     
  4. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    Not sure... How can I tell?

    Thanks
     
  5. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    Are the perches too narrow?

    Thanks
     
  6. Don

    Don 1/2 ton status

    Joined:
    May 30, 2002
    Posts:
    1,778
    Likes Received:
    0
    Location:
    Spokane Washington
    Perche's on the 14 are too wide. I forget the dimension's, but they have to be moved inboard about 3/4" on each side. And also, the shock mount's are staggered on the 14,one forward, one to the rear. Where on the 1st gen's, they're both forward of the axle.
     
  7. Beast388

    Beast388 1/2 ton status

    Joined:
    Nov 6, 2001
    Posts:
    3,039
    Likes Received:
    0
    Location:
    Clinton, IA USA
    [ QUOTE ]
    Not sure... How can I tell?

    [/ QUOTE ]

    The perches on a 1 ton 14BFF will be spaced at 40.5" center to center, whereas a 3/4 14BFF will be at 42.5".

    The spacing you need to bolt up an axle to your '71 K5 is 40". Some have used 1 ton axles and just pried the springs outward a 1/4" each way. Shock mounts will still need to be moved.

    To use a 3/4 ton axle, you will need to cut off the old perches and weld on new ones at the 40" spacing. Once again, you will need to move the shock mounts. I just completed the installation of a 3/4 ton 14BFF in my '71 Burb, /forums/images/graemlins/thumb.gif
     
  8. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    Cool... I just measured... 42.5... so I guess it is a 3/4 ton... IS there a structural difference? Anyway... thanks for all your help!!!
     
  9. Beast388

    Beast388 1/2 ton status

    Joined:
    Nov 6, 2001
    Posts:
    3,039
    Likes Received:
    0
    Location:
    Clinton, IA USA
    [ QUOTE ]
    IS there a structural difference?

    [/ QUOTE ]

    Nope /forums/images/graemlins/thumb.gif
     
  10. Triaged

    Triaged 1/2 ton status

    Joined:
    Feb 21, 2001
    Posts:
    3,808
    Likes Received:
    0
    Location:
    CA (LA/OC area)
    The only real difference in a 3/4 and 1 ton is that the 1 ton has larger brakes. I don't see any difference as even the 3/4 ton brakes are so much larger than the 1/2 ton stuff. It didn't matter for me anyway because I went to disc (drums were shot and $$$ to replace).
     
  11. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    How did the conversion work? Was it super hard?

    Thanks
     
  12. Don

    Don 1/2 ton status

    Joined:
    May 30, 2002
    Posts:
    1,778
    Likes Received:
    0
    Location:
    Spokane Washington
    The disc brake conversion, is a piece of cake to install. Just need to redo the brake line's a little. No big deal. /forums/images/graemlins/grin.gif
     
  13. slayer77

    slayer77 Registered Member

    Joined:
    Oct 21, 2003
    Posts:
    29
    Likes Received:
    0
    Location:
    Pleasant Hill Ca.
    Right on!!! What do I need to order and from where?

    Thank you
     
  14. Triaged

    Triaged 1/2 ton status

    Joined:
    Feb 21, 2001
    Posts:
    3,808
    Likes Received:
    0
    Location:
    CA (LA/OC area)
    I got a set of brackets from Misfit on this board. I think Ecobit now sells his stuff (and he might sell some others as well).
    Other than the brackets you need a set of 1/2 ton front calipers (D44 or 10B to match your front end...they only differ in banjo bolt size), brake lines (I used the stock front lines and installed some extended pro-comp stainless lines in the front), and rotors from a 77 3/4-ton chevy. I then installed a High Angle Driveline 1-ton CV driveshaft and t-case e-brake. The 1-ton shaft is required to run that e-brake.
     
  15. earl87gta

    earl87gta 1/2 ton status

    Joined:
    Apr 6, 2003
    Posts:
    551
    Likes Received:
    0
    Location:
    Chuckey TN

Share This Page