Hi all, I'm new to this site and this my first post and hopefully the right place to find an answer to my question that's been driving me nuts! I've got a thumping noise in the left front when the tire drops into a bump, doesn't really matter on the size of pothole or curb. It feels like it's right under my feet. Curious if anyone else has had this problem and how they solved it. Now, I tell you what I've replaced trying to fix it. Shock towers, shocks, upper/lower ball joints, radius arms/brackets, all the rubber everywhere, steering link, bushings in the front axle pivot point. I'm lost, help!

Thanks!
Dave

 

Cab mount? Hmmm...Hell...Not much left to replace at this point....


Oh, welcome to FTE....

-Wes

 

does it have a lift kit or body lift? when I had body lift in mine it was the hard block made the noise. My lift kit pivot block actual wore the bolt holes egg shaping the holes hit a pot hole and made thumping noise. switched truck to solid axle no noise now

 

Nope, no lift kit. All stock with the 4-shock package. Cab mounts look good. Maybe the pivot spot is ovaled out.

 

Transmission mount perhaps?

 

It does happen. I would mic to roundness also take a hammer and a punch to the rivets to make sure they are still tight. Also make sure to jack up the truck support the weight on frame and jack on the pivot bracket to make sure no movement.

 

Tranny mount is tight, pryed on that with a big pipe and it's snug. I'll focus on the pivot spot tomorrow. thanks for the advise.

 

Here's a thread of mine where I had the same issue as you:
https://www.ford-trucks.com/forums/929994-ideas.html

Here's an article that I found that states this is a common occurrance and has a fix for some of the issues.
http://www.batauto.com/articles/ford/ford_trucks.shtml

 

Thank for the links, I'm heading over to the garage to try the crossmember thing right now. My dad had been a Ford Tech for 30+ years and this is stumping him and all his buddies too. I actually found a TSB from 1997 on the PTS website that covers just about everything in the link. I'll keep you guys posted

 

So any update on this?