T-LOK

yes it is

http://www.v6mustangstuff.com/drivetrain2.htm

The item on that page I asume as I am going to purchase it as well.
Also any 1 can tell me is this a hard project or should I let someone doit for me. Also any ideas of pricing to install the T-Lok. I have a 2000 Mustang Vert 5-speed. Will that T-Lok work for my car? Also if I change gears later on as i am not that knowledgable yet about gearing. If i purchase this T-Lok and change the gears later on will this T-Lok still work? Just wondering because i just simply dont know and like to As i plan on changing gears later.

DO NOT do the work yourself. It is VERY intricate and needs special tools for the calibration/alignment if I remember correctly. Have a shop do it, that way if they end up installing them wrong and damage your ride, THEY HAVE TO PAY FOR IT! : ) Also I recommend you change your gears WITH the T-LOK install, you won't be dissapointed.

A traction lock is what you need, but I agree that you should have it professionally installed. The interaction between the ring gear and the pinion gear is very critical if you want to avoid gear whine or premature wear. The gear install kits include gear marking compound that allows you to visualize the wear pattern of the pinion on the ring (after installing it and then disassembling again), and adjust it using shims if you need to. Most shops have jigs and experience to do it right the first time, and I think the extra money will be well spent.

Do you just want a trac-loc so you can avoid the dreaded single-wheel burnout? It's a lot of money to spend just for that....