Just paint the aluminum before putting on a stainless guard. If it's in a trailer and stays dry most of the time it will take a very very long time to cause problems if ever. Similar to how most bolts on outboards are stainless and the castings are aluminum. Not sure why galvanic corrosion is so discussed when it comes to prop guards.

@@timlong1462 cheers, I’ve since installed the guard and indeed, painted it before hand. I think I used duralac when inserting the bolts, can’t remember. I guess it’s discussed as it’s a legitimate concern. As an example, I have stainless rivets and button clips on the aluminum framing around my windscreens for an old vinyl canopy that used to clip on, and the reaction between the dissimilar metals has absolutely eaten it to pieces around each stainless steel button. The boat spends very little time on the water (used once every 2 months or less) and is throughly washed anytime it is used (always salt water ocean work). It’s always parked in a shed. Perhaps the anode on the outboard is effective at preventing any issue reaction issue here? FYI, I installed the guard that is a triangle that goes only on the bottom fin and requires 2 stainless bolts drilled through the skeg itself. (Because 1/3 my skeg was broken off).

Excellent question and no one seems to be able to answer this....either Yamaha or Mercury

He’s using it on his rental boats…

clarksresorts.com/pages/view/skeg-guard

Where ?