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72 Duster disc brakes #1485012 08/15/13 01:24 PM 08/15/13 01:24 PM
Joined: Oct 2006 Posts: 7,367 Iowa burdar OP Owen's Dad
burdar OP Owen's Dad Joined: Oct 2006 Posts: 7,367 Iowa	These would be small bolt pattern correct? I just bought a 68 Dart with front drums. Will the entire 72 k-member setup bolt into the 68? Is there a replacement rotor available that has the 4.5" bolt pattern?

Re: 72 Duster disc brakes [Re: burdar] #1485013 08/15/13 02:35 PM 08/15/13 02:35 PM
Joined: Apr 2007 Posts: 2,918 Calgary, Alberta Canada a12rag master
a12rag master Joined: Apr 2007 Posts: 2,918 Calgary, Alberta Canada	Pretty sure, 74 and up (A body) were all the big bolt pattern . . . that is what I have on my 74 Duster360. Cheers Mark

Re: 72 Duster disc brakes [Re: a12rag] #1485014 08/15/13 02:40 PM 08/15/13 02:40 PM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	All A bodies built before 1973 used the small bolt pattern whether drum or disc EXCEPT the 68 SS Dart and Barracuda HEMI cars. In 1973, the drum brake cars still used the small bolt pattern while the disc cars had the larger bolt pattern. The A body cars actually could have still had drum brakes into the early built 1976 models! I owned a 76 Dart with a 225, a 904 and 4 wheel 9 inch drum brakes.

Re: 72 Duster disc brakes [Re: a12rag] #1485015 08/15/13 05:17 PM 08/15/13 05:17 PM
Joined: Jul 2003 Posts: 2,125 Hunt Valley, Maryland 1fastrunner top fuel
1fastrunner top fuel Joined: Jul 2003 Posts: 2,125 Hunt Valley, Maryland	I believe that's where my front disc brake upgrade parts came from.

Re: 72 Duster disc brakes [Re: burdar] #1485016 08/15/13 05:37 PM 08/15/13 05:37 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: These would be small bolt pattern correct? Will the entire 72 k-member setup bolt into the 68? Is there a replacement rotor available that has the 4.5" bolt pattern? Yes you could bolt in the whole 72 k member setup with discs which'd have SBP. If the rear axle is BBP & that's what you're after all the way around you MAY be able to get an adapter to run a BBP rotor on the SBP disc spindle or if not I know there's an adapter to use the 73-76 A body disc spindles/BBP rotors on the small upper ball joint (early) upper control arms which you have now so you could get BBP up front if that's the goal live every 24 hour block of time like it's your last day on earth

Re: 72 Duster disc brakes [Re: burdar] #1485017 08/15/13 05:45 PM 08/15/13 05:45 PM
Joined: Jan 2003 Posts: 5,357 Rancho Cordova, California (Sa... hemi71x master
hemi71x master Joined: Jan 2003 Posts: 5,357 Rancho Cordova, California (Sa...	Quote: Is there a replacement rotor available that has the 4.5" bolt pattern? There is now a rotor available with the 4 1/2 inch bolt pattern, for the Kelsey Hayes, 4 piston caliper, disc brake system. It's nothing more than a Mustang rotor, re machined internally, for the bearing and race used on a Mopar spindle. The aftermarket vendor that does that work, and sells them, is The Ram Man. RF-4C Phantom 69-370 Zweibrucken, Germany

Re: 72 Duster disc brakes [Re: hemi71x] #1485018 08/15/13 06:29 PM 08/15/13 06:29 PM
Joined: Oct 2003 Posts: 411 Texas vynn3 mopar
vynn3 mopar Joined: Oct 2003 Posts: 411 Texas	Quote: Quote: Is there a replacement rotor available that has the 4.5" bolt pattern? There is now a rotor available with the 4 1/2 inch bolt pattern, for the Kelsey Hayes, 4 piston caliper, disc brake system. It's nothing more than a Mustang rotor, re machined internally, for the bearing and race used on a Mopar spindle. The aftermarket vendor that does that work, and sells them, is The Ram Man. Or just find a good machinist and do it yourself: http://www.forabodiesonly.com/mopar/showthread.php?t=20544&highlight=mustang+rotors vm

Re: 72 Duster disc brakes [Re: vynn3] #1485019 08/15/13 10:42 PM 08/15/13 10:42 PM
Joined: Oct 2006 Posts: 7,367 Iowa burdar OP Owen's Dad
burdar OP Owen's Dad Joined: Oct 2006 Posts: 7,367 Iowa	Thanks everyone. Exactly what I needed to know.

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