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Discussion Starter · #1 ·
Hello all...

I am just looking to check my thoughts on this one as I have been away from Jeepin' and working on vehicles for several years.

1999 Jeep TJ 4 banger, 5 speed.

In 2wd I get bone-shaking vibrations in anything more than 1st gear. I put it in 4hi and it smooths right out, but then return with about 1/3rd the vengeance when I take my foot off the gas.

I'm thinking u-joints on the front shaft? The last time I drove the jeep in the fall I thought I heard some squeaking and such from underneath with some minor vibration, but I was just farting around for a few minutes in low in the backyard and in the rock pit at the end of our road.

Other ideas?

Thanks
 

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Mostly old school..!
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Probably a good bet. I would disconnect the front drive shaft at the pinion, tie it up out of the way and go for a ride. If vibes are gone, pull the front shaft and rebuild it.
 

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Discussion Starter · #3 ·
Probably a good bet. I would disconnect the front drive shaft at the pinion, tie it up out of the way and go for a ride. If vibes are gone, pull the front shaft and rebuild it.
Thanks. I was going to pull the shaft and see, but I just noticed it this morning on the way to work as it's the first time the Jeep has been on pavement in many years. At least u-joints are cheap.... but laying on the concrete garage floor in the middle of winter is not my idea of a good time. I wouldn't have even known about it except the daily driver is in the shop for a few days.
 

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Discussion Starter · #4 ·
Probably a good bet. I would disconnect the front drive shaft at the pinion, tie it up out of the way and go for a ride. If vibes are gone, pull the front shaft and rebuild it.
Pulled the front shaft last night and as it turns out, there is slop in the pinion.

Good times.

Thanks for help.
 
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