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12 vs. 14 bolt driveshaft length?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Ryan B., Feb 1, 2002.

  1. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Has anyone swapped out their coorperate 12 bolt for a 14 bolt FF and taken the driveshaft measurements how much it changes?

    I currently have a 12 bolt that I converted the pinion yoke to a 1350 u- joint, so I won't have to change the u joint if I bolt a 14FF under there...
    But I've heard people saying that the driveshaft length will change?
    How much? Are we talkin' like an inch or what?

    Thanks in advance!

    [Real Men Don't Care About Gas Mileage Or Rapid Tire Wear!]
    1972 K/5
    Ryan B.
     
  2. BurbinOR

    BurbinOR 3/4 ton status

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  3. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    i put franks 2.5in lift on mine and went with the 14ff and had no drivline mods exept the u joint

    wheeling pics
     
  4. muddin4fun

    muddin4fun 3/4 ton status

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    I've got a 4" lift and all I had to change was the u-joint

    <font color=green>Can't sleep...the clown will get me</font color=green>

    <a target="_blank" href=http://www.bluefox.tv/~lara>My Wonderful Site</a>
     
  5. POWERMAD

    POWERMAD 1/2 ton status

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    With no lift I had to drop the t_case to keep the yokes from binding.


    <font color=green> Too bad ignorance isn't painful </font color=green>
     

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