tyre size on slammed split

Anyone with a splitty happen to be running wide 5's on a 15" rim with a straight axle rear end plus a front link-pin with adjusters and drop spindles? I'm just wondering what size front tyres I can squeeze on (it's also not a narrowed beam). The bus is going in the shop but I'd like to be able to order the tyres in advance to reduce down down.

cheers,

Brian

ask Muller.

175/55/15 got them on the front of my bus , bridgestones of the back of a smart car $145 each, white walls fit on to