Topic: a whole lot of shaken going on?

[anarchy joe]

fellas

I have all of a sudden picked up bad vibe at 35mph and 58 mph i got my tires rebalaced and they where fine. going to check the drive shaft tommarrow. anything i'm over looking? 

tires are nothing big just 32's.

[daniresch]

driveline ujoints, axle ubolts, body mounts.... that's a start
when does it vibe? accelerating, de-accelerating, braking?

[anarchy joe [OP]]

mostly when it is accelerating. put it will shake till it gets below 53mph and then again at 31/32 mph.wierd

[Nimyad]

Is it a vibration or a bounce?

[David]

Sounds alot like my recent vibration,shaking at various speeds, checked and replaced all suspects, still vibrated and shook. My shifter would shake like crazy making me think driveline, joints or rear output bearing in the transfer case, but nay.
Turned out to be the rear diff input bearings, toasted. Replaced them and no more shake. Good luck with yours.
Mines an 83 BTW

[teambeer1]

check your motor and tranny mounts

[tyes]

dude, i got a bad vibe too. you can see my thread http://board.marlincrawler.com/index.php?topic=92348.0 but yeah, im still working on mines. good luck..

[zorak]

IFS or straight axle?

[anarchy joe [OP]]

84 runner straight axle. I found one of the causes.new u joints for the rear shaft. but im still getting a vide ( not a shake or bounce) at at 45 - 50. I fear that i have a t case output bearing going out or a pinion about ready to eat it.  will keep checking...

[Stevsie]

check shackle bolts for loose nuts