Spec on a 78 Matador. No sepcs on Bendixs site for the Concord AMX rotors that I could find. If the 95 Crown Vic rotor sits in the same plain as the stock rotor when on a drum spindle you'd have to allow for a caliper bracket that moves the caliper out .2 and maybe a stock brakcet would allow for that, or maybe the rotor could be turned to reduce the diameter. Part Number PRT1118 Product Type FRONT GLOBAL BRAKE ROTOR Bolt Circle 4.5 H&R or R H&R Minimum Thickness 1.12 No. of Stud Holes 5 Nominal Thickness 1.185 Outside Diameter 10.813 Overall Height 4.766 Solid or Vented V Stud Supplied 1/2x20 Style Full Cast -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II " I realize that death is inevitable. I just don't want to be around when it happens! " -------------- Original message ---------------------- From: Wrambler242@xxxxxxxxxxx > The rotors on the big spindle car are how big? > For 12" rotors I'd look at 90's Crown vic or 2002 Ford Explorer 2wd. > I believe the Explorer 2wd rotor is supposed to be the smaller of the two and > more likely to work. > I know a guy over on one of the forums used the Crown vic rotors and have since > heard that the explorer is a direct fit too but slighty smaller in diameter. > To use either of these you need to find drum brake spindles and knock the > drums off. > I plan on investigating the Explorer rotor at some point in the near future for > possible use on the conv. > I was going to go with redrilled 99-04 WJ rotors, but the Explorers won't need > redrilled for the correct bolt pattern. > > -- > Mark Price > Morgantown, WV > 1969 AMC Rambler, 4.0L, EFI, T-5 > 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II > " I realize that death is inevitable. > I just don't want to be around when it happens! " > > -------------- Original message ---------------------- > From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker) > > " From: Frank Swygert <farna@xxxxxxx> > > " > > " [] > > " > > " To run the earlier brakes you need either a later or earlier > > " (other than 75-78) spindle from a small car with disc brakes. > > " Earlier big cars used the large bearings and spindles too, so > > " you're looking for 71-74 Hornet/Gremlin or 79-83 Concord/Spirit > > " parts to convert. The big bearing rotors are available (check > > " www.rockauto.com and AMC vendors), but cost a good deal more than > > " others. If you can find a 79-83 Concord/Spirit (or even Pacer) in > > " a local salvage yard that's the best upgrade, with the 82-83 > > " preferred. > > > > afaik all amcs used the large spindles and bearings only with the > > bendix brakes '75-8 with ambos and mats maybe getting them early, in > > late '74. you're right otherwise. > > > > there's a late-'70s-ish mopar rotor that uses the same large bearings > > and should fit and should be more available, but it's ~1" larger so > > caliper bracket work would be needed and i don't know about the > > thickness. would be an interesting experiment though. > > ________________________________________________________________________ > > Andrew Hay the genius nature > > internet rambler is to see what all have seen > > adh@xxxxxxxxxxxxxxxxx and think what none thought > > _______________________________________________ > > Amc-list mailing list > > Amc-list@xxxxxxxxxxxx > > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list > > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list