I have the thrust plate with the tab on it I thought I had lost the 4th bolt and looked even for it just to realize that the "4th" hole was for the tab and didnt have a bolt in it. Lol
I like tmm oil plug hole that seems like it would be the most effective and easiest. Bolts can be a right pain to drill thru and I'm with krazykuda I dont trust just two bolts. I think I will do the oil plug hole!!
Just curious does the factory original system not provide enough oil to the timing chain? Is that the purpose for this? Or is it just a more is better type deal?
