I'd suggest going with a camber angle that will put as much of that wide tire footprint as possible on the ground. That would probably be zero, or maybe 1/2 degree negative. Using the conventional 2-3 degree positive camber angle used with tall, skinny tires with a straight axle will result in the tires wearing the outside of the tread quickly, and losing whatever imaginary advantage a wide tire offers. They're going to hydroplane at any speed above a crawl anytime there's even a moderate amount of rainfall. I'd also suggest driving it only on dry, sunny days.

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