hello all i have a 1992 ford f150 8' bed 33" tires my problem now is all of a sudden anything over 40 mpf without the 4wd on or hubs locked i get a shake that causes the front tires to wobble and i have to slow to 5mph to get back to normal i dont have stab shocks on the front nd but i have used the truck without this happening and i have no idea what it might be cause now everytine i hit a bump it starts to wobble if anyone has any ideas on how to stop this i would love to hear them thanks . marc

 

Put the front axle on 2 jack stands (right beneath the bolt head on the bottom near the knuckle) and get underneath. See how much slop your steering linkage has, and exactly where it's loose. Don't forget to check the axle pivot bushings/bolts, radius arm bushings, and the ball joints. You can also have an assistant wiggle the steering wheel slowly to see if the linkage follows the steering wheel exactly.