ADDING A SURE GRIP

You should check the ratio of the gear, it is likely a highway gear and not something fun like 355. as for swapping out the pumpkin. it isn't that difficult and doesn't require any special tools. you do need to check to see if the U joint is the same size as what you have, but even if it isn't there are u joints out there that will fix the size issue. albeit they may be hard to find.