TR3 Water Pump

[Doug Mathews <tr3run@peachnet.campus.mci.net>]

I may have to replace the water pump on my 63TR3 and in looking through the
parts catalogs, there appear to be 2 types, one with a press fit pulley,
and one with the "original" bolt on, key in shaft type. I'd prefer the
latter. Any comments or recommendations from those that have replaced TR3-4
water pumps?