the Diplomat's used an 11x2.5" rear drum on cop and taxi setups.
Not sure if it'll work in your case but you have more options available if it will.
i'm pretty sure "most" 11x2 1/2" drums will interchange because the axle stand off on the rears are the same. [i think !] the outside appearance will be different, such as fins vs. smooth, fin count and shape, etc. with that said, trucks [with 2WD, 4 1/2" bolt pattern], vans, station wagons, etc. may be something to look at. try the junk yards first for an example before you plunk down the money for new ones. [you may just be lucky enough to score a pair of usable drums] my wagner master catalog lists a different part # for your car vs some of the newer dodge/chrysler, truck/car applications that share the same drum part #.
