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Does anyone have any experience with the ZF parking brakes used on the F450s? I suspect mine may be causing a death wobble, going to rule out any suspension issues first.
ZF Parking brake
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if you ZF parking brake is causing deathwobble, you have some serious chassis issues at hand.
don't get me wrong, the ZF parking brake sucks at many levels. deathwobble is very unlikely.
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Ok, have to dig through the suspension I guess. It starts around 35-40 mph, about shakes the truck apart,
you feel this through the steering wheel or through the floorboards?
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It's hard to tell, it's so bad, but I would say more the truck shaking than the steering wheel.
I can pretty much guarantee that parking brake is not your problem.
I had a customer bring in a truck that had been driven down the road with that brake on, the brake itself had grenaded and the back of the trans was cracked in multiple places, but it still didnt have a deathwobble like you are speaking of.
I had a customer bring in a truck that had been driven down the road with that brake on, the brake itself had grenaded and the back of the trans was cracked in multiple places, but it still didnt have a deathwobble like you are speaking of.
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I thought I felt a little play in the brake when I was checking u-joints, thought I'd ask.
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I replaced the track bar bushings and that helped, it's still wobbling occasionally though. I think it may have trashed the steering gear, as it now leaks like a sieve.
how much slop play do you have in the steering? anything more than 2in is too much when shut down.
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Barely any slack in the steering. I replaced the track bar bushings and the stabilizer, all of which were toast. It's now drive-able. I think it still has a little vibration at about 40 mph, maybe I'm imagining it. Either way, going to replace tie rods, drag link, steering gear and the kingpins to be safe. Had this wobble hit while loaded on the interstate, I don't know if I could have rode it out.
chrlsful
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isn't Death Wobbel frm Track Bar not being in plane (@ a different angle) than OEM design w/the other (is it drag link?)...
Now U did the bushings, check the angle between the two.
Could I have it confused w/'bump steer'?
Now U did the bushings, check the angle between the two.
Could I have it confused w/'bump steer'?
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