Brakes Thumping at low speed

[Lokimaster]

I searched the forum and can't really find the answer so...

This morning I noticed on my way to work when I go to stop, as soon as I apply brake pedal pressure I get a dull thump sound and can feel it through the floor boards. At higher speeds, say over 35 mph, I do not feel it. It brakes fine. Had brakes and calipers replaced this past October, so I hope that is not it. I don't see any obvious damage through the wheel. The thump is coming from the Front driver side.

Any ideas?

 

[jasonb]

check that the caliper bracket anchor bolts are both there. i had one work its way out and when i hit the brakes, it would slam the caliper assembly forward into the spindle making a thunk and you could definitely feel it. still stopped the truck fine though, but i wouldn't want to drive around with it doing that. the bolts i'm referring to are #16 in the pic attached.

also, could be that the drive shaft slip yoke needs to be lubed. does it ever make the sound if you gun it from a stop?

 

[Lokimaster]

Nope, just when I brake. The brake job is under warranty, I am going to drop by there today and have them look under it.

 

[Lokimaster]

Well, Brake place just called and said everything in the brake assembly is good and tight.

Sounding more like a bushing, but would one make that kind of sound?