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.

drive line extreme angles (angles posted) --new pics--

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BowtieBlazer, Sep 22, 2003.

  1. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Well, I finally got my 14FF under my truck and the 4" lift going but I am noticing a major change in driveline angle. From everything I read and understood a 4" lift you could get away with the bare minimum of changes as far as in the driveline, well swapping in a 14bolt at the same time, even with the angle shims my driveshaft yoke is at such an extreme angle its binding with my axle yoke...I haven't put a angle finder on it yet but its bad...

    Would the extr height of the axle tube and the natural angle this 2wd c30 axle had on it really make it this bad...I even corrected the angle slightly from stock upwards before i ever thought about putting it under and checking the axgle....

    Anyone have some specific #'s as to how much the 1" t-case drop actually nets? Or am I lab rat #1 /forums/images/graemlins/1zhelp.gif
    Wow, this is just another example of how every vehicle is different.
     
  2. aj_tatted

    aj_tatted 1/2 ton status

    Joined:
    Sep 6, 2003
    Posts:
    183
    Likes Received:
    0
    Location:
    arlington, tx
    Re: drive line extreme angles

    i'm not too sure about the 14 but i'm still running with the 10 and i put a 6"lift with a slight angle and shimmed my t-case 1" and except for needing a slightly longer driveshaft the angle all though looks to be extreme seems to be holding just fine.i say shim the t-case and drive it see what happens. /forums/images/graemlins/thumb.gif
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Re: drive line extreme angles

    I don't know how you're binding at 4". My friends have ran 12" and more on stock style driveshafts.
     
  4. Pookster

    Pookster 1/2 ton status

    Joined:
    Nov 21, 2000
    Posts:
    3,195
    Likes Received:
    0
    Location:
    NYC, NY, USA
    Re: drive line extreme angles

    Totally possible to bind at 4" on a 208. Not always, but its right at the border of binding up. Dropping the t-case does wonders, but it looks as if it will put more stress on other components.

    You will have to measure the angles though. Binding would be if there is acutally binding- you may just have worn u-joints, unbalanced shaft, or the angles arent right yet, so your getting everythnig out of phase.
     
  5. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles

    I'll have a angle finder by this evening and post what angles I find....
     
  6. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles (angles posted)

    The rear axle is sitting at 0 deg dead nuts and the t-case at 2-3deg in the first quadrant if that makes sense, or 2-3 degrees tilted down..... is just 2-3degrees gonna bind it that much.... /forums/images/graemlins/1zhelp.gif
     
  7. slimlynn1

    slimlynn1 1/2 ton status

    Joined:
    Apr 9, 2003
    Posts:
    336
    Likes Received:
    0
    Location:
    Hamden, CT
    Re: drive line extreme angles (angles posted)

    What is the angle of the shaft?
     
  8. Pookster

    Pookster 1/2 ton status

    Joined:
    Nov 21, 2000
    Posts:
    3,195
    Likes Received:
    0
    Location:
    NYC, NY, USA
    Re: drive line extreme angles (angles posted)

    If your slipyolk to your drive shaft is at 2-3 degrees, then there should be an equal amount of degrees at the other end to counter act the u-joint speed difference.
     
  9. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles (angles posted)

    shaft is at 25deg /forums/images/graemlins/shocked.gif
     
  10. Pookster

    Pookster 1/2 ton status

    Joined:
    Nov 21, 2000
    Posts:
    3,195
    Likes Received:
    0
    Location:
    NYC, NY, USA
    Re: drive line extreme angles (angles posted)

    25 degrees? Ok, well then.. you want 25 degrees at the other end as well then.

    Just remember though, the greater the angle, the quicker the u-joints will wear out, regardless of vibes. The u-joint has to do more work.
     
  11. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles (angles posted)

    25 deg is the angle of the entire shaft but 2-3 degrees would be right about the slip yoke angle...
     
  12. BowtieRed

    BowtieRed 1/2 ton status Author

    Joined:
    Dec 31, 2002
    Posts:
    1,776
    Likes Received:
    0
    Location:
    Winston-Salem, NC
    Re: drive line extreme angles (angles posted)

    worse than this?
    [​IMG]

    i know. . . i wish i could have afford CVs at both ends. . . but i'll have the axle turned soon.
     
  13. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles (angles posted)

    turn your axle completely horizontal...like 0 degrees and thats what i am dealing with
     
  14. scrappyk5

    scrappyk5 1/2 ton status

    Joined:
    Mar 17, 2002
    Posts:
    2,099
    Likes Received:
    0
    Location:
    virginia
    Re: drive line extreme angles (angles posted)

    a shot in the dark here , but if your 4" lift has blocks
    for the rear , did you put them in backwards? . it can
    happen. /forums/images/graemlins/eek.gif
     
  15. Pookster

    Pookster 1/2 ton status

    Joined:
    Nov 21, 2000
    Posts:
    3,195
    Likes Received:
    0
    Location:
    NYC, NY, USA
    Re: drive line extreme angles (angles posted)

    That looks like my angles too. I still have to shim the rear axle back up so that it is inline with my CV. Question though, aint that drive shaft a little.. short? Unless the slipyolk is shorter than normal, (or the truck is in the air) it looks almost like the drive shaft could fall out!!


    [ QUOTE ]
    worse than this?
    [​IMG]

    i know. . . i wish i could have afford CVs at both ends. . . but i'll have the axle turned soon.

    [/ QUOTE ]
     
  16. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    Re: drive line extreme angles (angles posted)

    I've shot that same shot in the dark at myself as well......

    being that I really was manning the jack more than anything I better get in there close and examine.... the shorter end of the block..... aka the more angled (shorter in length top to bottom) end should be facing forward correct? so it in essence pulls the axle upward.... will check that more closely tonight
     
  17. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
  18. Mudzer

    Mudzer 1/2 ton status Author

    Joined:
    Feb 17, 2000
    Posts:
    3,639
    Likes Received:
    0
    Location:
    Missouri
    After looking at your pics. I would say, you need to re-tube the driveshaft for the rear. First of all, the slip is nearly out of the t-case. You can tell by the amount of shiny surface and the length of the slip yoke sticking out. Secondly, by re-tubing the shaft, you will move the yoke into the t-case and hopefully reduce the angle some. Eventually, you could benifet from a CV rear shaft - point the 14b up at the t-case output and install a CV and you are through with issues. /forums/images/graemlins/thumb.gif
     
  19. BowtieBlazer

    BowtieBlazer 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,462
    Likes Received:
    0
    Location:
    Baton Rouge, Louisiana
    got pissed today, pulled the axle again and used the angle finder to reweld new perches back on....we'll see if this fixes anything
     
  20. Derf00

    Derf00 1/2 ton status

    Joined:
    Jul 25, 2000
    Posts:
    1,683
    Likes Received:
    0
    Location:
    Abilene, TX
    Based upon your pics, I think you need to drop the t'case, rotate the pinion on the 14b until it is 2 deg below the angle of the slip yoke, and then if that solves your problem, retube the shaft. I am running the same set-up without any problems on a 6" lift.
     

Share This Page