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14b sf question...

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

  1. Jersey

    Jersey 1/2 ton status

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    i'm sure this has beaten to death but i read so many posts with conflicting advice, i wanted to know if i can find an answer for MY application. My 10bolt is shot and i'm going to try to get to the bone yard tomorrow to get a replacement. I'd like to go wiath a 14b sf for the strenth and to keep 6 lug. I'm not going to put a locker in it and i do like the LS option. I've read to stay away from the gov locks. Question is - what years and model trucks, vans, should i look for that may have a 14b sf, 3.42's, LS with the spring perches and shock mounts(mounts and perches not critical - can weld) in the right spot to bolt direct into my '91? I wont be wheeling hard or beating on her but i'm not the easiest on the pedal either so i figure since $'s kinda tight right now to do a full swap, the 14bsf with the same gears as my front and 6 lug would be my best choice. Actually, my wife just had a contraction!!!!!!!! :) (due with our 2nd child on the 20th) and now i may not be going in the morning! Looks like it's going to be a longgg night! Can't wait to see and hold this little girl!! Anyway, i am going to have to go get something pretty darn soon since the spiders and axles are about to blow up in my 10b. Any info would be great. Thanks.

    - Jersey

    '91K5 - 350, 700R4, NP241, Flowmaster
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>click here for pics</a>
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    PM Scooter and check out what he is doing with a 14SF to convert it to 6-lug. [​IMG]

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

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  3. Jersey

    Jersey 1/2 ton status

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    i thought some 14sf's came with 6 lug?

    '91K5 - 350, 700R4, NP241, Flowmaster
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>click here for pics</a>
     
  4. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Yeah, on the newer body style trucks.

    The thing about using the newer SF rears, you have to cut and relocate the spring perches and shock mounts to make them work with your rig. The older 8-lug SF's already have the perches and mounts in the proper locations.

    Scooter is using an older 8-lug SF rear and converting it over to 6-lug using something like '98 shafts and the TSM rear disc brake kit.

    PM him, its pretty interesting!! [​IMG]

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

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  5. Jersey

    Jersey 1/2 ton status

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    i dont mind cutting and welding, cheaper than axles and i can add 1/2 - 3/4" on the perches to cure the rear sag. know what year they started with the 14sf with 6 lug? Scooters' interesting, huh? ha. I'll give 'em a shout.

    '91K5 - 350, 700R4, NP241, Flowmaster
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>click here for pics</a>
     
  6. thatK30guy

    thatK30guy 1 ton status Premium Member

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    6-lug SF's started in '88.

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

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  7. Jersey

    Jersey 1/2 ton status

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    thanks and thanks for all the help and knowledge you post on this board. you save a bunch of people time and $. As soon as i figure out how to transfer a beer through the line and have it pop up in your drink holder (cdrom tray), you'll be the first.

    - Jersey

    '91K5 - 350, 700R4, NP241, Flowmaster
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>click here for pics</a>
     
  8. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    I'm going with a 14b sf and it has disc brakes... learned that if you got them and you bust a c-clip your axle shaft won't fly out either... might wanna look into them. [​IMG]

    9/11/01... "We will overcome"
    <a target="_blank" href=http://www.chevycagal.homestead.com/steph.html>www.chevycagal.homestead.com/steph.html</a>
     
  9. 85m1009

    85m1009 1/2 ton status

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    If anyone is interested in swapping in a 14 bolt that needs spring perches I just drew up the drawing and can now build them. Cost is $40.00 per set. There is a tube size difference between the ff and the sf so I need to know which you have.


    <font color=green>Steve Frisbie</font color=green>
    <a target="_blank" href=http://www.mooffroadoutfitters.rockcrawler.com>www.mooffroadoutfitters.rockcrawler.com</a>
     
  10. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    I need to see if mine are shot or not... Are these beefer or basically stock sized? I might be wanting these suckers if I can get them in time before I do the swap....

    9/11/01... "We will overcome"
    <a target="_blank" href=http://www.chevycagal.homestead.com/steph.html>www.chevycagal.homestead.com/steph.html</a>
     
  11. 85m1009

    85m1009 1/2 ton status

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    They are made of 3/16" plate, bent and have gussets welded into both ends.

    <font color=green>Steve Frisbie</font color=green>
    <a target="_blank" href=http://www.mooffroadoutfitters.rockcrawler.com>www.mooffroadoutfitters.rockcrawler.com</a>
     
  12. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Steve, whats the difference between the tube size on the 14FF's and SF's? Every one I have messed with and seen are all the same tube diameters, 3 3/8".

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

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  13. 85m1009

    85m1009 1/2 ton status

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    I had access to a van 14 bolt ff and it has 3 1/2" tubes. It is the only 14 bolt that I have actually measured. It would be nice if they were all 3 3/8". I will do a little more investigating.

    <font color=green>Steve Frisbie</font color=green>
    <a target="_blank" href=http://www.mooffroadoutfitters.rockcrawler.com>www.mooffroadoutfitters.rockcrawler.com</a>
     

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