32 mm for the axles change your brake pads more power needs new brakes while your doing all this be careful of the tps sensor not to stretch the wires while your pulling the old motor and installing the new one. good advice on checking the sensors completely hook up your harness while the motor is out so all you have to do is the top connections. str makes a good cam seal. if the motor has not been rebuilt or anything all you should have to do is change it once its in and run it. good luck have fun and take your time if you get frustrated walk away and take a break dont rush it. where are you located at get someones number that is close to you in case you need some last minute help.

Josh