The front shaft is only for those with Autotrac. Neither of my rigs needed front shafts.
I hear a few guys on GMFS running Zone stuff but I want to say more leveing kits that anything. That is not a bad price though.
In regards to the Cepek, did you contact Extreme Suspensions? They own the Cepek line now, I bought one direct few years back. The site is under construction but it says they are in stock.
Unfortunately, I do have the Autotrac. The way they describe it is a little nebulous..."3-point differential mounting system correctly positions the differential so the factory driveshaft can be used". It is not clear to me if they are talking about Autotrac or not.
I haven't actually checked on the Cepeks for a few months. They were all out of stock then though, even through Extreme Suspensions. If I remember right, they said "soon", so maybe they are now, but if the Zone lifts do work for Autotrac without a shaft and are decent lifts...
I will keep looking for more information on the Zones. When I finally get the money rounded up to do this I have at least 2 options, would like 3 just to be sure and to (hopefully) get some more competitive install quotes. I don't have the tools/location to do the install myself.
Lift + tires/wheels + gears is a lot of money in one go around.