I'm here to assist you!
Look at your steering components--insure everything is tight, and there is no slop in joints etc.
What about your driveshaft UNIVERSAL JOINTS ("U" JOINTS), are they in CORRECT WORKING ORDER?
Same tires on all rims?
Tire pressure Right---All tires?
Tire condition--have you broken a belt. Raise wheel, ever so slightly off of the ground (just barely scuffing the ground) Spin it by hand, Does it Grab the ground. Hard in one spot? It may have a damaged belt (commonly called a "Goose Egg")
More involved--swap the wheels from front to rear. Has the shaking stopped, or changed?
Are you missing wheel weights?--Get rebalanced
Is there a Glob of MUD on your rim or inside the rim. Out of balance, remove the GLOB!
Are BOTH of your Wheels unlocking, when not in 4X4? (If your rig is out of 4X4, and you raise your front end, spinning your wheel---should not move (the axle on either end, I'M NOT SPEAKING OF THE DRIVESHAFT, because if one axle is locked in, MIGHT SPIN THE OTHER END OF THE UNLOCKED AXLE [Differential Action] without moving the driveshaft
Imma CJ kinda Guy, I do not know what your front joints look like exactly, but on a CJ this is the "Knuckle Joint or U joint" that should not be moving, if the wheel is spun (tips of my fingers) Wheel is to the right (this is drivers side knuckle, viewed from the front) ---if it's unlocked (both sides should remain stationary) MINE ARE MANUAL. BUT UNLOCKED IS. UNLOCKED!
If there is a Test you do not know how to check, let me know, I may can help. Just ask, I'm here to HELP!
Images (Click to enlarge)
Saturday, January 8th, 2011 AT 10:21 PM