Re: Front axle vac. harness??
Well, you can, but depending on how much your time is worth to you, you MAY just be better off buying one. I spent about 7-8 hours total on mine (when I had the 30 up front) and never did get it quite right. The hard part about it is that inside that little vaccum buld on the shifter mechanism is a baffle attached to two disks. I cut out the rubber baffle (getting the bulb apart took some effort in itself) and drilled a hole in the disks. That was a chore in itself, too because the disks spin separate from one another and the drill needs to go through both. If I had a drill press this may have been easier. I broke 3 drill bits doing this.
I attached the skinny end of the cable to the disks with two cable stops and attached the actuator mechanism to the dash with an angle bracket. It looks pretty good, but did not work all that well. I was able to get it to engage nicely, but not disengage without some massaging.
All in all, the time I spent on it could have been better spent elsewhere.
That's just my opinion, though... I could be wrong.
90 YJ "Mangler" with TPI 305 Chevy/ SM465/ Dana20 SOA on Scout Dana44's on 35" BFG MT's