autocrossed the duster this weekend!

Per the axle lengths off Moparts here, a 65-67 B-Body axle is 1.1875" longer than an A-Body axle, a 70-71 Imperial axle is 1.3125 longer and a 68-70 B-Body axle is 1.5" longer. This would add up to a difference of 2.375" wider for the 65-67 B-Body, 2.625" for the Imperial and 3" for the 68-70 B-Body. Can't vouch for the accuracy, though.