Hi

i'm trying to find a good spec for my DK as tank i got good gear but i have some issu to keep up the aggro

Here is my stas

12/52/7 (see picture)
Strenght: 925
Agility: 127
Stamina: 2071
Armor: 24373
Defense: 545
Dodge: 26.92%
Parry: 21.13%

Weapons: Slayer of the Lifeless + Teldrassil Protector with Rune of Swordbreaking.

I got  Titansteel Destroyer in the bank to, maybe should respecc and use that?

http://www.ensidia.com/home/guides/tanking-death-knight/

you can do a duel-wield tanking spec if you want but as of right now you can't apply the Stoneskin Gargoyle enchant to the 1h weaps.  3.3 patch will change that though and you'll probably see some changes to current DK specs.  All in all, it's best to go with a 2h weap, preferably something Agi based like http://www.wowhead.com/?item=47522

I run a Blood Tanking spec myself and i seem to not have much trouble holding threat.  Every so often i do end up having a hunter or mage go ape-crazy and pull agro from me but not often.

http://deathknightbuilds.com/

You'll find some nice DK help hope t helps

Thanks for all answers. My DK is tanking now, and it goes good =)