they are on my spectra 32 and there are some cracks. trying to keep it fairly period so want to try and find the parts to fix it.
you can see the crack on the hinge above





not on much have been working on the old girl for a while. now putting her all back together. but still have some things to fix. this being one of them.

They were used on mercury Outboard's with trim back in the 70's. I have a couple used like the pic with extra seal kits and a brand new set that superceeded the ones in the pics.

Maybe MR = Mercury Racing???
They look nice.

not worried about the rams. does anyone know about the transom bracket and the plate. if you look at the hinge on the transom side, you will see the crack.

They look aluminum, just grind the cracks out fill up with weld bead. That's what I have done. If you don't have a TIG setup, any welding / machine shop can do it. Shouldn't cost much, it will be more work getting the tabs off the boat the welding them up.

thats the plan as of right now.