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.

driveshaft vibration

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1989blazer, Jun 23, 2004.

  1. 1989blazer

    1989blazer Registered Member

    Joined:
    Jan 7, 2004
    Posts:
    35
    Likes Received:
    0
    Location:
    Bay Area, CA
    My driveshaft is still vibrating a bit, contrary to my post a few months ago. Dang. I checked the angles between the driveshaft, transfer and axle and they're 9 and 12 degrees respectively. My question: at these angles do I need to go to a double carden shaft? I'm wondering if the axle is over-corrected and needs a 1 degree shim. I've been reading drivesaft sites and they seem to think a 1.5 to 2 degree correction is what's needed. I've got Rough Country springs in the rear, needless to say - stiff as hell. Anyone else solved a similar problem. Anyone got a 2" - 4" lift with standard drive shaft and no vibration? Anyone solved the problem by replacing old, worn shock absorbers?
     
  2. blazerpunk

    blazerpunk 1/2 ton status

    Joined:
    Feb 3, 2004
    Posts:
    121
    Likes Received:
    0
    Location:
    Trinidad, CO
    1980 K5 4" lift stock rear drive shaft. No vibration. /forums/images/graemlins/dunno.gif
     
  3. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    Is your transfer case crossmember lowered?
     
  4. 1989blazer

    1989blazer Registered Member

    Joined:
    Jan 7, 2004
    Posts:
    35
    Likes Received:
    0
    Location:
    Bay Area, CA
    cross member is lowered. I'm wondering if having different weight u-joints would make a difference.
     
  5. drivelineman

    drivelineman 1/2 ton status

    Joined:
    Aug 23, 2000
    Posts:
    707
    Likes Received:
    0
    you can take two of the same rigs side by side one will shake and the other will not- but you need a c/v and proper pinion angle 2 degree's working (actual angle) and it will be happy again-Jess
     
  6. 1989blazer

    1989blazer Registered Member

    Joined:
    Jan 7, 2004
    Posts:
    35
    Likes Received:
    0
    Location:
    Bay Area, CA
    Yep, that's what I'm thinking. 9 degrees means a significantly lower u-joint life as well.
     

Share This Page