For Sale: Flowmaster Hushpower axle backs for '11-up V8s. Less than 10k miles. Great condition - no rust. I'm located in the Upstate of South Carolina. $350 shipped or best offer. I want to sell these as soon as I can, so give me your best offer. They are as near new as can be expected. I didn't have to use any penetrant to break bolts loose. I had them off in 15 minutes. Can send pics if need be. Email me at [email protected] Somebody buy these!