RE: [Chrysler300] AAJ disc brake bracket
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RE: [Chrysler300] AAJ disc brake bracket



Hi Larry

 

I am not familiar with the kit.  Does the GM bolt screw into a hole that is tapped in the AAJ bracket?  If so I’d suspect the AAJ threaded hole has a loose tolerance fit rather than a tight tolerance fit.  This is a mistake that GM wouldn’t make and probably why millions of GM products aren’t experiencing brake failure.

 

Just a theory.  I found out the hard way when making threads on mower drive shafts in a machine shop when I was a student.   Had to scrap a whole bin full of machined shafts when the supervisor found the cutting die on the lathe I was working  was inadvertently flipped to the loose setting and not noticed.  Mower drive shaft nuts must be tight on the thread otherwise they vibrate off (with nasty consequences)!

 

Regards

 

Henry

 

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Larry Jett LarryWJett@xxxxxxxxx [Chrysler300]
Sent: Saturday, 24 October 2015 3:10 AM
To: chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] AAJ disc brake bracket

 

  

Reference to earlier posts from me to the group. I am in Oregon assessing the damage on the 1968 Charger where the caliper attached to the AAJ bracket came loose and separated from the rotor causing loss of braking.  From photos I had assumed that the attaching bolts clamping the bracket to the steering parts had separated.  THIS IS NOT THE CASE.  The AAJ bracket remained attached as it should have.  What did fail was the GM designed bolts that you undo to effect change of pads.  Several of us using this system have found that these two bolts per caliper need Lock-tite and periodic inspection to insure their solidarity.  I did remove the original grade 8 bolts attaching the AAJ BRACKET on my 300 and replaced them with slightly longer bolts that I drilled and cotter-pined, but there has been no evidence that this is a safety concern.  MEA CULPA  

 

Larry Jett      Message sent from my........who cares?

                                                                     

 

 





[Non-text portions of this message have been removed]



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Posted by: "Henry Schleimer" <henry.schleimer@xxxxxxxxxxxxxxx>
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