I brought Ford F350 it had noise under the hood. A...

I brought Ford F350 it had noise under the hood. After few days they said it has broken liftersand it's going to cost me to fix $7000. My friend said it's most likely rockers which cost to repair much less. So brought the truck to another place and they confirmed it's rockers, so I paid $3900... Don't go to that olace, totally scammers. For sure they didn't even open the hood...