OK, so I brought my '79 4x4 half ton back online.
Been driving as a daily driver for around a month now.
My problem is serious, and can't seem to pin point it:
at any speed over 45-50 mph, if I hit a section a wash board road, a decent dip, bump or other problem on the road, the front end shimmys and shakes like a...well, it's bad. I'd rattle your fillings out of your teeth bad.
It makes me cringe driving the truck on the highway or interstate, and it was never like this before.
I slam the brakes, slow the truck down, and it goes away.
My dad owned the truck since 1991, it got a full frame off of sorts, rebuilt 400.
I redid the heads a year and a half ago after a blown head gasket, and put on a 4 barrel edlebrock intake and carb.
I am debting a few things:
I knew the shocks were junk, they were installed in 1993. Because this was a hunting/work truck for my dad, and not his driver, he was fine with it.
I put new shocks, last summer I did radius rod bushings.
Front end was rebuild years back, had alignment bushings installed.
This is a plow truck, aswell, but the tires do not wear odd at all.
A shop installed a new steering box 3-4 years ago.
The steering feels a little loose, but I can't seem to find a problem with it in the air.
At this point, I am debating tie rods or an issue with the castor.
The tires are still balanced, if on a smooth road, this thing rides nice, no tire shake. Tires are a 6 ply stock size 235/75/15.
Anyone out there, HELP!