Ford wheels are supposd to have a lean, try backing up and check them you will swear they are falling off. I wish I could get mine back to OEM factory specs for that softer ride with NO tire wear. Due to the crown in the road the highways dept use Ford adjusted the angle so your truck would steer right.
Check the front spring shackle.
The end up inside the frame seems to be the one that wears the most.
I had this clunk when I hit a pothole that I looked for for a year or so, never could find it.
I replaced my springs and shackles last summer.
When I pulled the front shakle out of the frame I found the clunk, the top bushing was gone on both sides.
The new springs had an extra leaf in them.
The shackle did more to raise the front of the truck than the extra leaf did.
Also the negative camber was reduced considerably since the front end sat higher.
86 F250 HD 6.9 IDI ATS turbo "not exactly" stock 4x4 T19 BW1345 3.55LS both ends D60 front, 10.25" Sterling rear, ram air, dual stacks.
If the camber (i.e. tire lean) was right at one point and now is not, it is due either to a change in ride height or a bad component (like worn ball joint, bent axle member etc). The camber can be adjusted with ecentric bushings - rockauto has the moog ones for less than $20.
1994 F-250 IDI Factory Turbo, 4x4, Extended Cab Long Bed, 4x4, 4.10 gears, E40D, 126,000miles.
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