cataclysm80 I missed the fact you where looking for front & rear mounting bushings,as fare as the rear go I now see why the catalog only shows just the mounting bracket & doesn't break it down further as in showing the bushing separate, from the link aar#2 provided,its a non serviceable bushing & was sold complete bracket & all,from that picture I can see the bracket strap is humped in the middle just like the original 2071572 bushings which retains the bushing in place so I'm willing to bet its the same,I just looked @ my 2 72 B body Dana bars & the width looks the same,I think the later years the bushing was serviceable & the 73/74 catalog {anyone have one & can look it up} will show the bushing separate,I encountered the same for the front bushing no break down of separate parts only the complete bracket,need a picture of front bracket but I think it may take the same bushing also.