Re: power trim & tilt
Prestolite is prestolite. Almost no difference between the stuff used on merc, J/E, Chrysler, and Force. J/E tended to drill the top port of their tilt ram at 90 degrees to the lower mounting axis while Chrysler tended to drill them on axis. Otherwise the rams and rams parts are about 95% interchangeable. J/E tended to have a slotted valve for manual release while Chrysler did away with it around 1980. The manual release is just an oval shaped body. As you turn the body, the oval acts like a cam and pushes a release. Otherwise it is the same pump. J/E liked to drill their low pressure port at 90 degrees and hold the tubing tight up against the cylinder. Chrysler liked to drill theirs on axis and run the tubing into a protected hollow.