Just found a deal on these, $20. The rams look different than the ones im use to seeing. No rings and a smaller design. the turned down planes make me think these are your m-80 for smaller boats, although they came off a 27' boat. can you confirm that. I tested them like I saw on shipshape, when they went down to your facility's, with compressed air and they extended and retracted just fine.
The pump I have was bought by a friend with a bob's jackplate. Although the fittings are your normal 1/4" and the jackplate has Jic fittings that are larger. can you identify the pump for me. I cant figure out what the side fitting is for????? any help with the pump would be useful.