Discount Tire is offering a $75 rebate on the purchase of a set of 4 in-stock wheels on 4/12/17. No minimum purchase as far as I can tell. (I think the previous deal was $100 off any $450+ tire purchase.)
Link for more info: http://www.discounttir
Let me preemptively say I am not an employee of Discount Tire, just a satisfied customer. Hope this deal helps someone.