Why would it do that when I apply the brakes? Causes? fixs? 1981 4wd sr5 Thanks

 

Could be the road, could be the air in your tires, could be worn brake pads, could be air in your brake lines, it could be a number of things.

 

left caliper could be seized.

 

i would put my money on the left caliper being frozen.

pull the pads and check the caliper out. If its bad i would go buy new loaded calipers from your local auto store. They might be pricey but they usualy have decent (bendix) pads and have a lifetime warranty. (I have taken advantage of mine already)

 

yup check the pistons in the calipers

 

i'd check the air pressure in the tires along with the cailpers being frozen

 

Good advice. Don't automatically assume caliper. Start cheap and easy then work your way up.

 

its fairly easy to check if a caliper is seized. its also the most likely culprit.

 

Tire pressure first, but its most likely a seized piston in your caliper. I would replace both with a loaded set from a parts store.

 

My truck pulled to the right once, i rotated my tires..that was a easy fix...good luck with yours.

 

Could also be the belts in the tire shifted out of wack. rotate the tires and see if it pulls tho the other side.

 

Another possibility: is the torque rod in place? This is the solid bar that runs from the tower on the front axle to the frame, right next to the draglink. If a previous owner (or yourself) removed it, axle wrap under braking will cause the truck to pull right.