Width-wise they WILL fit with the proper wheel offset ... 15 x 10 with 5-1/2 BS. HOWEVER, that's a 30" tall tire ... ain't gonna fit without rubbing the front of the wheel openning. A 325/50r15 is a 28" tall tire and will fit. I have a 69 RR Current tire is a M/T 28 x 12.5 x 15LT on 15 x10 Welds with 5-1/2 BS. These tires are dimensionally the same as the 325/50r15 but are a bias ply as opposed to a radial. Worth mentioning is that they fit but are VERY close to the inner wheel well.