can you move your driveshafts

[CumminsJeep]

yes yes its normal for a little bit.

[Zullock Holmes]

mine have a lot of play actually almost half a turn

[XJ99]

There should be some play with no load on the DS from
the backlash, and the spider gears. A half turn is excessive.
If you have a spool, there should be very little.

[Kyle]

The front moves very little but the rear moves about little less than half turn. I was told this is like this on my jeep for two reasons, the Detroit locker induces some play and my parking pin is on its way out as my jeep rolls about a foot once in park and brake is taken off.

[Dogman]

Not much wiggle in my shafts yet I have a serious vib at 50 mph - sure would like to get rid of that.

[Kyle]

SYE

[Dogman]

I'm not even lifted yet???

[bucketokarma]

mine doesn't even move when I'm in 4-low.......

Yeah I get some play with my shaft no seriously, I do.

[wannabejeep]

I'm not even lifted yet???

hahaha sye anyways! jk Are your tires balanced? Any chance you could have lost a wheel weight? When was the last time you got an alignment? Or am I completely wrong and it is clearly a drive line vibration?

[XJ99]

and if all that checks out, jack the front up and try to
wiggle the tires. Bad hub assembly FTMFL. Just went
through this, and the vibes were at 45-50....... 0.02

[Dogman]

hahaha sye anyways! jk Are your tires balanced? Any chance you could have lost a wheel weight? When was the last time you got an alignment? Or am I completely wrong and it is clearly a drive line vibration?

Yeah - I think its something up front - just been cold and I've been lazy about checking it out. Next warm day I'll crawl underneath and give it a look.