The 95+ Exploder is probably the widest 8.8 out there. It also has rear disk brakes. I can't imagine a Storm being wider in the rear than a fox mustang. If you need something narrower than a stang, check out a ranger. The early rangers are narrow, however, the differential is offset to one side for fuel tank clearance. If you wanted to narrow it on the cheap, get a ranger rear end, get an extra short axle from another ranger, and narrow the long side of the housing to match the short axle. That will give you the narrowest 8.8 for the least amount of money.