Re: Quigley 4 Low giving me trouble....
The owner of Quigley was at several of the SMB annual rallys (before SMB developed their own 4WD system) and pointed out that 4WD high is a sycro-mesh gear set while 4WD low isn't. That means that, in going from 4WD high to low, you need to really "cram" the gears together.
Whenever you go into 4WD, you need to have the automatic transmission in neutral and should be rolling forward slightly. It should go from 2WD to 4WD high smoothly and quietly. To shift into 4WD low, put the automatic transmission back into neutral while still rolling forward, grab the 4WD shift handle firmly, and shift into 4WD low without hesitation and in one quick, forceful motion. You will probably hear the gears bang together. If you don't use enough force (maybe because you think the gears are getting chipped), you might not get the gears completely engaged and while it might seem that you are in low range, it transfer case will pop out of gear as soon as you put a load on the system.
The need to be rolling and in neutral to get into 4WD (especially low range) means that you need to get into 4WD before you need it.
'01 Ford EB50p Quigley 4WD