2010/2011 Carrier bearing went out on same week

Hmm coincidence?

Bought a new 2010 & 2011 Tacoma in November 2010 for the job site. Last week the carrier bearing went out on the 2010 and this week the carrier bearing went out on the 2011. We have 48k on the 10 model and 58k on the 2011. In the process the stress ruined the u-joints so we had to change them, both under warranty. The local Toyota shop admitted that the drive shafts were in good shape but purchased new ones under the warranty because it's cheaper to purchase than to send the old ones out to balance.?