is there any marine salvage yards in nj that sell parts out of them.

Docks marine, budd lake NJ

Mostly crap though

ok ill try it is it mostly lake boats or anything bigger

Here is an idea as to crap. Great if you need something to get by, and some times they have boats.

Old transom anyone?

Try Marine Power Service in Farmingdale, N.J.
They have a large inventory of new and used MerCruiser Engines & parts.
732-751-1200, I think the owners name was Andy, very helpful
Also have a website.