Question for you guys...

Why is it important to "line up" the shafts after removal? Since I am putting in new shafts both front and rear, wondering how I do this?

Thanks.

Hey darks,
Just a guess, but, I think the drive shafts are "balanced" from factory. This applies to re-installation of the the old shafts (mainly the two rear drive shafts).I always make an alignment mark on mine if I have to remove them. Unless the splines are keyed, you may want to take the new ones to a shop to get them balanced if it hasn't already been done by your parts/rebuild source. I say do it right since your putting the effort forward. It might be overkill, and others can comment. Its a small radius, rotating mass, but if its off by alot, could drive ya nuts with vibration and all and work against all the fine work your doing.

Well I did confirm that my rear shaft will be fully balanced.

Front shaft is coming from Cobra so I'm assuming that one is balanced too.

I did mark the old shafts and the TC and front and rear diffs. Those marks so me no good with new shafts, right?

As long as I'm not getting vibration then I can assume all is well?

Right X3.

Is the rear shaft coming with the intermediate bearing installed? If not, and you pull it apart to install the bearing, make sure you scribe the spline connection so it goes together exactly in the same orientation as when you split it, (to maintain the correct balance). I've screwed this up on a repair many years ago, and it did not seem to matter, (no vibrations), but it's supposed to be balanced as a unit, (I marked it with a magic marker...and accidentally wiped my marking off before reassembly).

So I am thinking about reassembly. I want to make sure I don't fuck this up.

Do I need to worry about resetting anything, computer wise?
Is there a break in procedure for a new TC?
Anything else I should worry about?

You don't need to reset anything for the per facelift model. Just put it together and let us know.

Hopefully this is the last question I have to ask you guys.

Received my package from Cobra in 3 days... Nice! But, my output shaft has a nice sized nick in it, right on the bearing. Is this ok or should I do an exchange? Due to shipping, exchanging it would mean my truck is down another week... Extremely frustrating considering all of the remaining parts are here and ready to be installed.

Pic...
http://just.razzi.me/photos/870398/4b8f528.jpg

Dude call Cobra and ask them if this would be an issue. Tell them that you are paying mechanics to put this in. You do not want to pay them to do the work twice. If they say they will replace, ask for expedited shipping.

What does that nick come in contact with once assembled?

I spoke with Omar at Cobra. He asked to send him a picture, which I did just now. He said if it is defective then he will send me a new part right away and include a box and shipping label for returning the old one. He apologized for any inconvienience, and insisted it must have been damaged in shipping. With the way they were wrapped in bubble tape, I don't see how that is possible. In my opinion he sent me a bad part.

Either way, the truck is down for another week....

Life goes on. Maybe I can get those new LED tails installed this weekend.

Call them back and ask them to expedite shipping. Tell them your shop is making you pay storage.