Song Request - Ride on Josephine by George Thorogood

I know, just figure it out myself. 

It sounds like a standard Bo Diddley in E, but every time I play a standard Bo Diddley in E I wind up playing Not Fade Away. 

Please confirm if it's really in E and also give me some tips about how to get that nasty George Thorogood grind at the end of the stanzas. 

Any help is appreciated.  I usually play acoustic and usually play it Country fingerpick style, so trying to get a serious rock sound from an electric is foreign to me.  Please answer as if I don't know anything at all, because that'd be the right assumption to make.

Thanks a million.

- Zurf