---

OK. 1987 Montauk.
You may have the full depth splashwell and can drill the red holes.
You need to measure to make sure.

Look at this members personal page who has a 1987 hull.
Look at the 6th photo down.
http://www.whalercentral.com/infusion...r_id=29977

You really want to drill the red hole if possible.
If not, then the yellow, or if someone's hull is much older, then the green hole.

As always, measure twice and layout the lower hole on the inside and the outside of the transom before drilling. Make sure the hole clears the bottom of the splashwell including the washer.