Replaced oil lines didn't help solve my problem. Was told it was where o ring meets on block and i got under there to remove adapter but bolt was stripped out. So now I need a new bolt after I get this old one out, the size is 13mm, i only need one. I just want to get it fixed does anyone know the part number for this bolt? Any advice on changing out the o ring and gasket where it meets the block? I have an oem gasket and o ring so i plan to clean it well and see if that helps. Peace out and thanks in advance!

 

check LMCtruck.com for the bolt.. or rock auto

 

What is stripped - external bolt head? Have you tried a 6-point socket yet? At this point I think it would probably be worth $10-$20 for a new quality 6-point socket. Careful with any metal shavings and dirt. Bearings don't like them.

 

If the threads on the bolt are stripped, any decent hardware store should have what you need. Bring the other, "good" bolt along with you to match up the threads. If the threads in the block are stripped, you'll need to install a heli-coil in the block. Most good auto parts stores have them. IIRC the thread is 5/16" X 18, not metric.