also if you change the rear main seal check the shaft for any wear marks,if you have any you will have to purchase a speedy sleave to make up for the wear. dont skip this step or it will leak,no questions asked. i am going through this now, 5,000 miles on the car and i have to rip it all back apart to put a $5 part on the rear main shaft. annoying. o yeah just so you know timken makes them and they are readily available