[Rick 427 Cobra]

XKE's use spine drive hubs for wire wheels. In order to mount Trigo or other bolt on wheels you have to change hubs to a flange arrangment. XK sedans use a flanged hub with a chevy bolt pattern. E-type rears are desirable because they are narrow. Sedan rear ends have to be narrowed for a Cobra application. This narrowing process has proved to be problematic for many owners, resulting in total suspension failure. Not a good thing at speed. Get the E rear,change hubs and your set.
I have the fronts also for Contemporary and others using E type front ends.