Re: JPOR: Ford 9" Disk Brake Conversion

[M & L Garner <mlgarner@xxxxxxxxxx>]

another note.  there is no real reason that the rotor has to be 100%
true on the end of the axle.  A small bit of runout will not effect
braking.

mikE(the discs on my Currie 9" are only located by the studs.)

"Michael C. Knorr" wrote:
> 
> ****************Please Remember to snip your replies***************
> > Actually, I'm done :-)  Time for a new topic... sort of.
> >
> > Have any of you done a non-bolt-on, non-aftermarket-parts
> > disk brake swap on a Ford 9"?
> 
> Chris the problem you run into is exactly the way you see it. The inside
> of the rotor is to small to slide over the axle flange and rotor hole is
> to small to fit over the bearing retainer without modification. Most
> likely it is to small to fit flush with the axle flange due to the taper
> on the inside as well.
> 
> > I'm looking for a way of doing the swap that doesn't require
> > modification of the shaft or rotor, since those are both
> > parts that may be replaced (wear/breakage) in the future.
> > Possibly far from home or shop facilities, with no spares
> > on hand, if Murphy has his way...
> 
> I think the easiest to do is modify the rotor. While this is best done
> using the correct tools to machine out the correct size hole it can also
> be done with an die grinder and some patience. Granted the hole won't be
> perfect but in the boonies and you just scored the last rotor in town it
> could be done. But then you are looking at a really unlikely failure.
> When was the last time you saw a rotor completly fail suddenly. I mean
> to the point it couldn't be used to limp back to safety. No the axle on
> the other hand I would leave stock becuase those can suffer catastophic
> failure but even then the rotor could be transfered over to the new
> shaft.
> 
> Just my two cents,
> Mike Knorr
> 
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