For whatever the reason (and I'm willing to bet on the publicity) the HMMWV up-armoring process has gotten a bump-up.
December 14, 2004

An additional 100 up-armored Humvees per month–like this one being outfitted in Kuwait–could soon be heading to Iraq. Secretary of the Army Francis J. Harvey is looking to modify the Army’s contract with Armor Holdings, Inc. of Jacksonville, Fla., which currently produces 450 per month. “Once I was informed of the additional production capacity, I wanted to ensure those additional vehicles were going directly to our forces in Iraq,” Harvey said. The new version has improved armor and weighs about 3,000 pounds more than the regular version.
Let's cut the Secretary some slack, however. He's new.