Hello,
M '80 F150 4x2 longbed wanders alot when driving. Mostly when going straight (or at least trying to). Turning is no problem, and bumps don't seem to be a problem either. It has 90k miles, and tires are new, shocks look to be OK.
What should I look at with the front suspension??

Slainte'

 

Play in the;
Ball joints
Tie rod ends
Pitman arm to drag link
Steering box

 

Thanks. Now to check em

 

If the things already listed check out ok, then check the I-beam bushings (also called axle pivot bushings), radius arm bushings, and the rubber steering coupler (also called a rag joint) where the steering shaft connects to the steering box.