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 frieghtliner wobble with new brakes
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bholman
New Member

USA
7 Posts

Posted - 02/22/2013 :  04:08:24 AM  Show Profile  Visit bholman's Homepage  Reply with Quote
I have a couple of frieghtliners with front end wobble (even with new brakes)while stopping c2's of course

Trailboss
Senior Member

United States
149 Posts

Posted - 02/22/2013 :  04:43:51 AM  Show Profile  Reply with Quote
Are they Hyd. Disk or air brake. Hyd disc you did have the rotors turned or replaced. Worped rotors is the most common cause of wobble with brake applacation.
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baptistbusman1
Senior Member

USA
65 Posts

Posted - 02/23/2013 :  12:52:54 PM  Show Profile  Reply with Quote
We run a whole fleet with hydraulic brakes. We totally gave up with having rotors turned. It's faster to just put new rotors on and be done with it, more cost effective also considering the time it takes to load them up and have them shipped off for 3 or 4 days to get turned. And afterwards they would always heat crack. And the fact we are getting 80,000+ miles out of a set of front brakes.

Did you check and lube your guide pins? New calipers?

I was formally Baptistbusman. However, I lost my password, and had not updated my email address.

Here is a link to my old posts. http://www.schoolbusfleet.com/forum/search.asp?mode=DoIt&MEMBER_ID=1846
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Bassman
Top Member

USA
509 Posts

Posted - 02/25/2013 :  02:14:32 AM  Show Profile  Reply with Quote
It's been a common problem in our area to wind up with a front end shimmy after replacing front pads with the factory rotors. I believe that it generates a lot of heat to seat the new pads in and causes warpage. Replace them with Performance Friction rotors and you will not have that problem again...even if you replace the pads down the road. Perf Friction rotors are MUCH harder to warp.
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ic0730
Active Member

18 Posts

Posted - 03/03/2013 :  06:42:09 AM  Show Profile  Visit ic0730's Homepage  Reply with Quote
so that's why our mechanic calls them freight shakers
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