I helped a fried of my wife's clean out her garage for a house sale and she said I could have several boxes of things that were left behind. I have no idea what it is, but it was in a box with a lot of marine related tools and parts.

Looks like a homemade press for bearings or wear seals?

Looks like it was "made out back".

Bellhousing bushing press.....

Man, I changed my bellhousing mounts a few months back, it was tough even with a hydraulic press. I'd like to see someone try it with this thing.

did you go back with merc boushings ?

Yep, updated to the newer knurled bottom style.

Did they change where the front of the engine sits for proper alignment? Mercury says this style mount will lower the nose of the engine about 2". Just wondering if it really does

can crusher

2"? No way. Maybe 0.25". But I changed front mounts too so I really couldn't compare before and after in a meaningful way.

The kit does include some shims for the rear mounting in case you run out of front down-adjustment on your existing mounts. I didn't need to use these.