Well for all who would like to know I replace my heater core it was a tough job
if you are doing it by yourself,this is really a job for two people.My Haynes manual was very little help in changing the heater core but this link was
http://my.voyager.net/~sscully/F-150...50_Exp_002.doc thanks to Alan T and
sscully this made the job easy good luck.
O ya if you have a bigbody like me 6 3 290lbs take out the front seats
