I have a 76 K5 Blazer 4wd and the front driver side tire is tilting inwards. Can anyone give me some suggestions of what to look for..

 

ball joints probably. since theres no pressure on the ball joints when you jack the truck up, just get the tire off the ground, grab the top of the tire with one hand and the bottom of the tire with the other hand and push the tire inward and outward, any kinda movement is bad. but have someone look behind the tire too if you have movement, could also be a bad bearing or something else

 

Or worst case scenario would be a bent axle tube.

Have you been jumping it at all lately?