I am asking this for my husband.... on how difficult is it to replace a "pick up coil" on a Suburban (5.7 liter), does the entire DISTRIBUTOR have to be taken out of the engine to replace this simple $10 "pick up coil"...... is it worth the trouble to do this on your own with a Haynes manual --- or should he take this to a garage, how involved is this project, how time consuming? Any advice, please help! Thank You