I have a complete standard shift conversion from a 350 automatic. Do something different? Put in a 3 speed trans setup in your skylark or GS 350.everything is here. Pedals,linkage,bellhousing,Z bar,flywheel,3 speed trans,clutch fork, ,motor bolt,throw out bearing,all misc bolts,I'd replace clutch and pressure plate, if you want to go real reto use the column shift,I have the column and loopspeedo too. Maybe you could use some of this stuff to convert to a 4 speed I'm not sure what.i know I'm supposed to price it,but there are too many options on what direction you may want to go,so tell what you want.