I was needing some information in regards to installing an omc select trim on my boat. i have a 1985 omc 3.0 ltr 140 hp with the stringer 400. it currently has the "jack" screw on the front enging mount which adjusted the preselect trim. the trim system will go on the front engine mount and actually tilt the entire engine/outdrive to achieve trim. my questions are is it difficult to install and how do I find one? any info would be apprectiated.