i have a 1988 2.8 blazer the altenator has tis painted on it.13103 there are two other markings before this number but i can't make them out. what i want to know is can i replace the bearings myself. or do i need to have them pressed out with a hydralic press found at ashop ?

 

i have fixed the problem. thank you for reading my post. i'll be closing this post now .