What are the gears you have with those 33" tires to tall (307) and you may be over stressing the tranny. Normaly that would not be a real prob. but for the AX5 it is. OH!! its a 4 banger,,, you should have 410's. That is good if you have a 6 or 8 for the 33's but the 4 may need 456 for that sisze to keep it in the power band.