Ok guys, I've been trying to figure out why my truck is pulling to the left for about 8k miles now. It's been to the alignment shop about 6 times and nobody can figure this out.

I'm not a mechanic, but I know my way around a wrench, plus YouTube helps. I started with the tie rods, both inner and outer with new sleeves from Moog have been replaced. I have also replaced the left driver side caliper to eliminate any sticking.

What am I missing here? When I let off the wheel it immediately wants to veer left. On the highway I can take my hands off and go around a sweeping left. I've had the truck for 60k miles and 5 years and it never did this before the last 8k. Please help sorry for the book

:Edit forgot to add my tires are wearing very evenly. To give you an example I have just about 30k miles on a set of mud terrains with lots of life left.

 

Truck is a 2000 5.4 4x4

 

Your tires may be wearing evenly, but are they inflated all the same?

Have you taken the truck to just the same shop for an alignment, or multiple shops? Some techs / shops have their own preferences as to what they like to aim their alignment to. Roads (in my area, I assume this is everywhere) are slanted so you want the alignment to pull ever so slightly to the left so as to offset the road pulling the vehicle to the right. If you haven't, maybe try going to a different shop for an alignment.

How are your brakes? Maybe you have a caliper sticking a little, or the drum (if you don't have disc rears) are adjusted too tight on the drivers side.

 

I stated that I already replaced the front caliper with no difference. Also yes it has been to 2 different shops and 4 different techs. Tire inflation is fine as well. We have slanted roads but my truck pulls left even on a road that's slanted to the right.

 

There a couple things that I would check. But almost any issue I can think of would make your tires wear unevenly. But worth a shot.

Check your gearbox. Is it rusting or coming loose from the frame?
Check your rear end. Are the u-bolts tight? Has the rear end shifted in any way?
Check your sway bar and sway bar links, are the bent or failing?
Check you front axles for well everything.
How are your front shocks?
Check your ball joints and your wheel bearings.

Any of the issues will cause the truck to pull but most would leave you with uneven tires.

 

Anything happen 8k miles ago?
Have the steering components checked, maybe it's not brakes or suspension but the steering is "self correcting" incorrectly? If that makes sense.

Bearings and hubs all good?

 

Gearbox as in the trans or the steering? Shocks are definitely good, all of the guys that have looked at it and "shook it down" say the wheel bearings etc are in good shape.

Here's one thing I do know, I have a cv axle with just a little play in it that needs to be replaced but everyone says that's not the problem. It's also on the passenger side.

 

I can't remember exactly when it started but if it was an immediate change I def would have noticed when and what caused it. Underneath I have replaced tie rods recently and idler arm 2 years ago. So that would leave the pitman arm? Not sure if that would cause the pulling.

 

Steering box

I would check your rear end, wheel bearings, and ball joints as well.

 

How would I check the steering box? Wheel bearings in the rear are about 1.5 years old. Ball joints are in great condition. And there is no play in the wheel bearings.