Suspension rattle

fields_mj · Dec 28, 2016

I'm trying to isolate a rattle in the front axle/suspension on a 2000 F350 4x4 CC. I would have sworn it was the ball joints. I've got the front drive shafts pulled out now, and waiting on a bigger pickle fork to arrive so that I can finish removing the knuckles and continue with the job. Thing is, they seem pretty tight. Obviously me pushing on them by hand, and with what little leverage I can get on them using a 4' 2x4 is nothing like what happens when I'm actually driving down the road. I'm just wondering if there isn't something else I should be looking at while I'm in there. The drive shafts (stubs) and U-Joints look good. One of the manual lock outs is trash, but that shouldn't give me the hard rattle/knock that I hear every time I hit a bump. Any suggestions?

snicklas · Dec 29, 2016

Does this truck have the "dog bones" from the frame to the sway bar on the back side of the front axle? When I bought my truck it had a clunk in the front when you hit a bump. It sounded like a bad ball joint or busted shock. There was a 30 day warranty from the dealer. I took it in and they replaced the ball joints because of the noise. It still did it when I got it back. I eventually found the problem and replaced the sway bar end links and the noise went away.

This is what I am referring to:

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This is the listing for my truck:
http://m.autozone.com/suspension-sy...-p-6-0l-turbo-dsl-ohv/54273_41669_0?location=

fields_mj · Dec 30, 2016

THANKS! I'll take a look at that.

Csm Davis · Jan 3, 2017

Also look at the actual sway bar mounts one of mine was bad and caused a similar sound.

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fields_mj · Jan 3, 2017

I ordered a set of MOOG links and went ahead and got a set of their mounting brackets while I was at it. For an extra $10 it seemed silly not to go ahead and do them. I'm doing the same thing with the shocks. They are easier to get to, and they look like they're in decent shape, but I'd rather replace them while I'm in there so that I'm starting with a reasonably clean slate.

fields_mj · Jan 10, 2017

Swapped out the end links and sway bar mounts last night. The links were SHOT. I suspect that was the source of the rattle.

Suspension rattle

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