when i am driving and hit bumos in road, truck feels like something is loose at the front end, I was told it could be control arm bushings, any clues?

check your ball joints

are they expensive to replace?

Safety 1st .Yeah the ball joints can be expensive , but frt end parts are as important as your brakes. You should go and get a frt end inspection ,
Inspection with an estimate shouldn't cost very much. They will inspect and give an estimate for the repairs. Better to repair now, or have a sudden steering loss/ accident.
With your truck getting older , it's a good idea to check it at least twice a year,or more if abnormal noises pop up-- a part that is good today could have play in it a month later.

Good luck.

thank you, appreciate your honesty and advice...
Tom

Jack the front end of your truck up and grab the top and bottom of our tire and see if you can shake/wiggle it. if the tire moves most likely your ball joints are bad