4.56 gears and e locker

[BITURBOAMG]

[quote=tomp]New tie rods have nothing to do with gears or locker, but I do suggest this be your first concern. The best thing you can do for your tie rods, pitman and idler arms is to add the Cognito Pitman/Idler kit! After you add that, then it's still a good idea to add larger tie rods.[quote]

Where do I get the gears, gear install kit and cognito pitman/idler kit? How much should I expect to pay in parts?