Tire wear, what's causing this! ? ?

this is very useful thank you. but i just broke the bank with all the parts previously ordered and wasnt really trying to brake the bank on a 40 dollar socket. that i will be using 2 times.

a socket size would be much appreciated - i found a few for a few dollars but i am not certain of the size. some one mentio0ned 1 7/8 but ive herd a tad bit largers sizes as well