On the trip home the water pump on the 454 locked up. The mechanic where I work, a good guy and worth it I am sure, wants $600 labor to replace it. To be honest I don't have that much free cash. Can anyone give me some pointers on removing the front end on a 91 Holiday Rambler Aluma-lite and a list of tools so I can try and do this myself. I have replaced water pumps on 350's but not motorhomes.