water pump and rad

have a 94 grand am v6 3.1 that has blown the waterpump and now has cracked the rad on the left side, is there any sealers that will work to repair the rad crack? how difficult is it to change the water pump.

The water pump isn't too bad. I just did mine and shouldn't take more than 1-2 hours max. As for sealing the radiator, how bad is the crack. If it's major, I'd recommend getting it repaired by a professional or even replacing the unit.

My $.02