I currently have a 1987 base 22r with a w-46 4-speed. IT is a 2wd. I have heard a w-55 or w-56 will bolt right in. My questions are: Will my current bell housing work? Do any of the fluid lines need to get changed? Slave cylinder or throwout bearing? Do I need to modify driveshaft? Will shifter line up? Any issues I may run into?