check that the  rear wheels are  solid by wiggling them when jacked up ,could cause wear if the  bearings or something  else is loose.  

My '62 Mini wagon wears out rear tires FAST on the inside edge just as if it had excessive rear negative camber. I bought the tools to check it out only to find that it is set up perfectly! Less than 1/2 degree camber and zero toe-in. No, the hand brake is not stuck on! Otherwise the car handles beautifully, is a blast to drive, everything I could hope for. It does not rattle or make odd noises, It looks brand new (2400 miles on speedo), it's set up pretty low. What could I be forgetting? I've read every forum I can find! We're talking less than 1000 miles on brand new 10" VEE STARs, and the same on a pair of old Pirrelli Cinturatos

ps this forum has been VERY,VERY helpful this past year messing around with this crazy car! you guys are amazing! Thank you, in advance!