Tire wear on 2001 Nissan Pathfinder?

Tried a set of Michelin LTX's and barely made over 30,000 miles due to two tires wearing on the inside/outside and the other two wearing in the middle. Went backt to OEM's which are Bridgestone Duellers. Again, only have 32,000 miles on the tire and they are just about ready to have to be replaced. The tires have worn evenly but I cannot figure out why they are wearing so quickly. Bought both sets from Discount Tires. Is something wrong with the vehicle or is Discount Tires getting low grade Michelin and Bridgestone tires for cheaper resale? Any suggestions on what to do or another tire to try?|||outside wear is a alignment problem castor/camber


inside wear ball joints or shocks


center wear is most likely over inflation |||I've had good luck with goodyear's.|||Bill I am with 51 on this answer. 2001 could easily have about 90,000 or more miles by now after any slack in the steering and suspension parts are eliminated also replace the struts and rear shocks. Next find a shop with a newer Hunter alignment rack. MonroeMatics are just fine for that truck (it is soft any way) Invest in a really good tire pressure gauge. Move the back tires front every other oil change have them ballanced once a year. Discount tires buy from the same suppliers as Tirerack Good-Year Firestone and NTB. I use tirerack.com and call if I want the tires and have them shipped to an approved installer who also has the alignment and suspension rebuilding abilities. Good Luck