Universal Joint problems of the 2011 Toyota Tacoma

The existing "Toyota customer support program zh2 certain 2005 � 2011 model year Tacoma coverage for propeller shaft universal joints" covers replacement of u joints and/or shafts due to excessive vibration and wear. My vehicle, while not covered by the specific VIN series, is a 2011 Tacoma which has its u joints replaced right now at a Toyota dealer. Reason: excessive vibration and wear causing loose and worn out u-joints according to Toyota shop in palestine, TX. The cost is approx. $560. The rep at Toyota customer experience center was unable to help and only advised to retain repair receipts for future widening of program, if applicable.

Since purchase vehicle has had intermittent vibration at highway speeds evidenced by shaking of the truck bed, empty passenger seat and steering wheel. Attempts to resolve rebalancing, rotating and replacing tires, aligning front end, wheel truing, universal joint and drive shaft hanger bracket replacement, inspection of- rod ends, upper and lower control arms, steering box, unsuccesfull. Just found out about the attached tech bulletin from Toyota. Shouldn't this be a safety recall due to the potential for driveline failure? Toyota tech bulletin # t-sb-0008-14 it won't upload due to size.