No, but I will tell you, Aluminum is lighter... alot lighter! I had a set of 35" BFG ATs on steel wheels, and then had a set of 35" MT bajas on aluminum wheels, and I swear they felt like they weighed half of the steel combo. My 33" BFGs on 05 Power Wagon Aluminum wheels are way lighter than the 35's, and I dont think its the tire that is the difference.