Driveline Vibes - Fixed!!!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 2Dogs, Dec 2, 2001.

  1. 2Dogs

    2Dogs 1/2 ton status Premium Member

    May 4, 2001
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    Hey All,
    Trying to work out some bugs on the blazer this weekend. One problem was a pretty steady vibration that varied with throttle. Classic drivleine symptoms. This was troublesome because of the brand new CV joint DL and the Slip Yoke Eliminator kit. The pinion angle was close enough that we looked elsewhere.
    Through a new pinion seal in to fix a leak and decided on a new(used) yoke just in case. Well, that cured about 98% of the vibe. Relief!!! I think this can be easily overlooked because the yoke didn't feel sloppy under hand torqing conditions.

    If any of you are experiencing vibes and know that your yoke has been loose, give a new one a try.

    Make sure your pinion shaft nut is tight also.

    I think that the remaining vibes (hardly noticeable at 25-30MPH) will be taken care of as I lift more :)


    Horn Broken... Watch For Finger.
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  2. Wheels

    Wheels 1/2 ton status

    Aug 18, 2000
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    Native Floridian living in Oklahoma, USA
    I just went through a vibe problem that drove me nuts. Turned out the yoke end play was too much (as measured with a dial indicator). The spec called for 0.002 to 0.027" and mine was at 0.036" (NP 205). Replace the outer output shaft bearing and shimmed it up and now it's GONE. Been vibe free for three months.

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