"09 Driveline Vibration

New to site. Have a question about my "09" tacoma. I have a mild vibration that comes in at about 25 mph, mostly on deceleration. Less when accelerating. Dealer said it was the steel wheels. And nothing but some type of new wheel (alloy) would fix problem. Maybe. At this slow of a speed I just couldn't make it be wheels. Crawled under rig and greased the heck out of all the u-joints, and vibration is about 90% gone. Is there a way to grease the hanger bearing? Don't see any fitting. Is this a usual problem with Tacoma's? Thankyou, and thanks for site, hope to use it often.

Zero

 

Same here, anyone experienced this or gotten it fixed?