i dont know how well it will work in a 300 but in a 240, they use the rb25det RWD(rear wheel drive) transmission( 1200$ ) with the rb26dett motor, because the rb26 comes stock with an AWD(all wheel drive) transmission. even with that, your probably gonna have mounting problems, they make mounts for the 240 so with enough research and $$$$(a lot), im sure u can accomplish it.