So, 75-78 all AMC cars? What I asked abot the bearings is if there is a work around? You can get a bearing to install a small bearing 28spline Ford axle in a big bearing rear housing. If the length of the spindles is the same then it is possible a bearing set exists that will do the same. Install big bearing discs on small spindles. -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrc II " Chronic Pain Hurts" -------------- Original message ---------------------- From: Frank Swygert <farna@xxxxxxx> > Big bearing brakes use a different size spindle, so you can't put them on the > small bearing spindles. The inside diameter of the bearings are different (big > bearings = bigger ID). > > All 75-78 AMC cars used big bearing spindles. All 75-76 used big Bendix (3.1" > caliper piston) front disc brakes. 77-78 small cars used the big bearing spindle > but small Bendix (2.6" caliper piston) disc brakes. 77-78 Matadors continued > using the 3.1" calipers. > > The big Bendix rotors are just over 1" thick for better heat dissipation. All > small Bendix brake rotors are just under 1" thick. > > The odd 77-78 big bearing/small caliper rotor is what makes those year small car > brakes a bad choice for an upgrade of earlier models. I've also been told that > those calipers had phenolic pistons that were prone to leaks, but I have to > believe that they would have been replaced a long time before that year/model > ended up in a salvage yard, especially now! > > ------------ > Date: Tue, 15 Jul 2008 09:10:32 -0700 > From: Tom Jennings <tomj@xxxxxxx> > > Sandwich Maker wrote: > > i have a possible availability upgrade for the '74-8 bendix spindle > > with the big bearings, a mopar part. > > > Ooh, nice find! > > So what exactly was the "big bearing" application in AMC? Most of 'em > are the "smalls", SET2 and SET6, right? I've never seen a big-bearing setup. > > Is big vs. small the ID of the bearing, or the OD? What I'm asking is, > could I put big-bearing rotating parts on small-bearing spindles? > > -- > Frank Swygert > Publisher, "American Motors Cars" > Magazine (AMC) > For all AMC enthusiasts > http://farna.home.att.net/AMC.html > (free download available!) > > _______________________________________________ > 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