On my 79 f-150 4x4 the front right tire wears really bad on the outside. The left tire wears fine, but the very right outside of the right tire wears terribly. I was told this could be because ford had problems with their Twin I beams from 79 to 81. Is this true or is it just a rumor? I am running 30x9.5x15 Wild Spirit Radial RVT tires, and I am planning on buying some new tires. I have looked all over on the internet and I can't find the Wild Spirit Radial RVT tire anywhere. Does anybody know if they still make them? Also, does anybody know where I can buy this tire if it is still made? Is their a better tire to buy for weekend mudding, and pavement driving during the week that isn't very expensive?

Thanks
"The Beast" 1979 F-150 400M, C-6, painted camo

 

Check the ball joints. This can lead to outside tire wear.

Nathan

 

I would bring it to a alignment shop they will be able to tell
you what is wrong with the right front side of your truck.
I have a 79 f150 4x4 with 4 inches of lift and I run 33"
b.f. goodriches. I do not have a problem with outside wear on my tires.

Glenn

 

Thanks

Could it have anything to do with me runnnig it in four wheel drive a lot. Been lots of ice here lately, and I have been driving in four quite a bit. Any advice on the type of tires I should buy?

 

[font size="3" color="#191979"] I think they gave you a real line of BS, as your 1979 F150 4x4 does not have twin I beam suspension like the 2WD trucks - it has a dana44 straight axle!

Probably is ball joints or maybe too much toe-in.

Is the tread pattern feather-edged towards the inside?
Do you make more fast left turns than right turns?
Has someone replaced the ball joints with offset ones and screwed up the camber?
When looking at the front of the truck from a distance, do both front wheels look parallel, or does the passenger's side look tilted outwards at the top?
Does the truck handle OK yet?

Art

 

At a distance both tires appear to tilted in at the top. I know it has nothing to do with the speed of turns.

Thanks guys

 

If both tires appear tilted in at the top its the ball joints. At speed the tires will tilt inwards at the bottom, causing the outsides the wear faster. Jack up the front, grab a tire at the 12 and 6 o'clock position and push/pull. Im betting it jumps around pretty bad.

Nathan

 

Thanks Nathan. I will give that a try. How hard is it to replace the ball joints? Also, how much will the parts cost me, and what all do I need?