Ok I will try and make this as pain free as possible. My 4runner has an old school rancho 3" kit with upper arms, a front subframe drop and balljoint spacers with stock torsion bars not cranked. I have auto hubs with a front diff supposedly from a 89-95 pickup. I am running 33x12.50 BFG AT's with 5.29 gears and an open front diff. The rear has 80 series rear coils and a track bar drop bracket and 5.29 gears with a full detroit. This runner was purchased from a friend with it already put together like thiis. The front d-shaft is out to allow the sway bar to stay on(poser I know). Finally onto my question. When I am turning at speeds greater than 5mph especially when the roads are wet the front end shutters and vibrates like the tires are skipping or the 4wd was engaged. Of course the front drive shaft is out so I don't know how this would be possible. My buddy tells me since the front end is from a pickup he had to disconnect some sort of vacumn actuated disconnect for the 4wd. So he says all I need to do is swap out the hubs to the aisin manuals. He has a spare set and he says it is a straight forward easy swap. Has anyone swapped from auto to manual hubs? Does any of this make sense? I miss my solid axle front ends. 
