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.

anyone ever swap a 14 FF into a 67-72?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by ImpalaSS, Aug 9, 2001.

  1. ImpalaSS

    ImpalaSS 1/2 ton status

    Joined:
    Feb 1, 2001
    Posts:
    201
    Likes Received:
    0
    curious..... im going to do this swap..... i hear the leaf spring pads need to be moved.... and what should i do about the shocks being one on one side the other on the other side on the 14 bolt? should i move were the shocks are mounted to the frame or where they are to the axle?
    thanks

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, edelbrock performer intake+carb, MSD pro billet http://communities.msn.com/68K10
     
  2. Chris Demartini

    Chris Demartini 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    2,406
    Likes Received:
    1
    Location:
    Dumont NJ 07628
    <font color=blue>I've done this. The pads line up but the shock tabs dont. I moved the tabs on the axle but the drivers side broke so I'm going to get new ones and weld them on (I re-used the stock ones I torched off, dont try it). The pickups had a different pinion angle (pinion yoke closer to the ground) because they were a longer wheelbase and had a longer driveshaft. I used degree shims to even out the driveline angles. Use a hybrid u joint (napa #447) so you can keep your driveshaft. Your u-bolts wont work so you need to find some for a 14 bolt. I had a set made for $30 and hogged out the holes on my 1/2 ton spring plate because I was tight for cash at the time. You need a 14 bolt from a 73-87 1 ton truck, the spring pads on the 3/4 tons are spaced to far apart.</font color=blue>
     
  3. ImpalaSS

    ImpalaSS 1/2 ton status

    Joined:
    Feb 1, 2001
    Posts:
    201
    Likes Received:
    0
    i already got the rearend.. i think its off a 3/4,,,,,,, and i have the u bolts and top plates...... thanks

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, edelbrock performer intake+carb, MSD pro billet http://communities.msn.com/68K10
     
  4. Klef72K5

    Klef72K5 1/2 ton status

    Joined:
    Apr 8, 2001
    Posts:
    249
    Likes Received:
    0
    Location:
    Columbia City, Indiana
    I too I'm interested in it. Are you going to put in a 60 model up front? Has any of you guys did this to your 69-72 blazer? What 60 should I be looking for? Dana puts it Fords and Dodges

    <a target="_blank" href=http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg>http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg</a>
     
  5. Chris Demartini

    Chris Demartini 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    2,406
    Likes Received:
    1
    Location:
    Dumont NJ 07628
    <font color=blue>Try and find one from a 67-72 chevy, it should bolt right up. Before GM had they're own HD axle (14 bolt) they used Eaton drop outs (looks like a huge ford 9") and dana 60s. The 60s should be 30 spline but avoid the 16 spline ones (pull a shaft before you buy it). The ford rears are 63" from WMS to WMS and our fronts are 69" so they're too narrow. I dont know the width of the Dodge 60 but I'm sure you would have to move the spring pads and shock tabs.</font color=blue>
     
  6. smp

    smp 1/2 ton status

    Joined:
    Jul 5, 2000
    Posts:
    708
    Likes Received:
    0
    Location:
    Florida
    If you use a 3/4 ton 14bolt you will have to move the spring perches from all the ones i've seen but if you use a 14bolt from a 1 ton it will bolt right up (again from what i've seen). You will need to move the shock mounts on the axle or frame most people move them on the axle.
    I have a 1 ton 14bolt rear and dana60 front on my 72 and other than the rear shock mounts it was a direct bolt up. Whoops i take that back i also had to change out the hard steel brake line on my 14bolt to match my brake lines.

    [​IMG] [​IMG] [​IMG]
     
  7. smp

    smp 1/2 ton status

    Joined:
    Jul 5, 2000
    Posts:
    708
    Likes Received:
    0
    Location:
    Florida
    Ah crap i also forgot about the u-joint for the 14bolt you will need a conversion u-joint from your 1310 drive shaft to your 1350 yoke on the 14bolt.

    [​IMG] [​IMG] [​IMG]
     
  8. ImpalaSS

    ImpalaSS 1/2 ton status

    Joined:
    Feb 1, 2001
    Posts:
    201
    Likes Received:
    0
    ok thanks. guess i'll move the spring mounts and shock mounts...... i already have this axle and dont really feel like searching for anthor from a 1 ton...... i saw on off-road.com someone made spring mounts from rectangular tubeing? does anyone see anything bad about doing that? it could give me a bit more lift to.....
    oh and im gonna use a dana 44 up front

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, edelbrock performer intake+carb, MSD pro billet http://communities.msn.com/68K10
     
  9. 82GMC

    82GMC 1/2 ton status

    Joined:
    May 14, 2000
    Posts:
    553
    Likes Received:
    0
    Location:
    Seattle Washington
    DepDog who hangs out over here, Is the person who made the smounts out of the bar stock. I'd send him a private message, To see how there're holding up and what not.

    [​IMG]Inline 6's are cool[​IMG]
     
  10. ImpalaSS

    ImpalaSS 1/2 ton status

    Joined:
    Feb 1, 2001
    Posts:
    201
    Likes Received:
    0
    thanks i'll do that!

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, edelbrock performer intake+carb, MSD pro billet http://communities.msn.com/68K10
     
  11. ryanNC

    ryanNC 1/2 ton status

    Joined:
    Dec 7, 2000
    Posts:
    182
    Likes Received:
    0
    Location:
    North Carolina, Valdese
    Just got through swapping in 87/1ton running gear on my 70 k5. The front dana 60 bolted right up but I had to go to the dealership to get the top ubolt plates and ubolts. Stupid me the ubolts where to short for my thick leafsprings. So I ordered a set from Skyjacker along with stainless braided brakelines about 6-8 inches longer (brake feel much better). The rear was all wrong. I had to weld on new spring mounts and shock mounts but not to awful hard. It just took along time to clean the axle of the spring pads. Also am running the hybrid u-joint until I get my driveshafts from Highangle Driveline. Had to grind the front calipers quite a bit to fit the 15inch wheels with the bigger Bendix brake calipers. But the grinding was worth it to be able to use my beadlock wheels.

    "need more <font color=green>cash</font color=green>"
     
  12. Klef72K5

    Klef72K5 1/2 ton status

    Joined:
    Apr 8, 2001
    Posts:
    249
    Likes Received:
    0
    Location:
    Columbia City, Indiana
    So chevy put 60's up front? what year of vehicle should I be looking for? We have some old salvage yards around. Do you know if they came with the crossover steering? That would be a good time to get that done too!

    <a target="_blank" href=http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg>http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg</a>
     
  13. Triaged

    Triaged 1/2 ton status

    Joined:
    Feb 21, 2001
    Posts:
    3,808
    Likes Received:
    0
    Location:
    CA (LA/OC area)
    The D60 front came in 77-87 K30's. They did not have crossover steering (not even the ford 1 tons did) but it would be a good time to add it.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
     
  14. ImpalaSS

    ImpalaSS 1/2 ton status

    Joined:
    Feb 1, 2001
    Posts:
    201
    Likes Received:
    0
    once again thanks to everyone i think i know what to do now :) are you able to buy new shock and leaf spring mounts? would make it easier to buy new instead of trying to save the old ones

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, edelbrock performer intake+carb, MSD pro billet http://communities.msn.com/68K10
     
  15. Chris Demartini

    Chris Demartini 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    2,406
    Likes Received:
    1
    Location:
    Dumont NJ 07628
    <font color=blue>Make your own spring pads from box steel tubing, use shock tabs from a circle track suplier.</font color=blue>
     

Share This Page