Most of the web sites for custom wheels don't include vehicles as old as 70's Landcruisers in their application charts so I'm wondering what vehicle is a good cross-reference. Since the disc brake parts for a Toyota minitruck are adaptable to an fj40 axle, is it safe to assume that wheels that would fit a solid axle minitruck would also fit an fj40? On a related question, if a wheel will clear the factory calipers on the front axle, is it safe to assume they will clear the GM calipers on the standard rear axle disc brake conversion?