I took my truck to a dealer in Houston for a oil change, told the service writer to make sure the front drive shaft was greased. I was told the u-joint was sealed and there was nothing to grease. After I cooled down I showed him the decal under the hood that states it must be serviced at each oil change he and the oil change guy found the grease fitting. They have changed my oil before and he told me they didn't have a grease adapter to service the u-joint. I went into orbit and said what was I to do if it fails due to their not knowing their own product. They ordered the grease adapter and said to bring it back for service. I called the service Manager and got the run around as I expected. Stay away from Allen Samuels Dodge in Houston!!