Firm Feel fast ratio Pitman/idler arms on 67-72 a body

From FF's website:



A BODY APPLICATION:

'60-'66 Arms will not fit
'67-'72 Arms will fit only with '73-'76 center link AND spindles installed

'73-'76 Arms will fit

Anyone done this? I was going to switch from drums to KH discs on a 67 dart but according to them I have to have 73-76 disc and center link. Thanks for any info.

I have a 67 Barracuda with 73 disk brakes and 67 center link and arms. The pitman arm must be the same as the box i.e. bighole in shaft arm with early centerlink NO! Small hole in pitman arm with early linkage works just fine. Forgot that it will not work with the long(fast ratio)pitman arm or long arm and headers.