made up a couple when running 6" or more lift on 4x4s
kicker shocks will help with any wrap up
used to have a JCWhitney traction device that mounted to the front spring bracket with a bayonet style stud and shock washers/rubbers
the a piece bolted under the ubolts and to the other end of the rod solid but with a swivle for up and down movement
this woked very good on a axle under spring set up but did limet axle twist when 4 wheeling
on a 90 Dak the spring is under axle like most cars...could just use slapper bars or the JCW set up could be modded to an axle over spring set up or a caltrac type system
could just add a torque arm to the axle and a solid xmember/cross brace