Kustom Bitz has developed a 4 link system that requires minimal chassis modifications.  The bottom bars use the original front spring hangers and the top bars have a bolt on double shear bracket.  This unit was installed on a daily driver of which travels home on a few dirt roads so nice paint underneath was not important but good engineering was very important. We make up our own rubber bushed 4 bars of which are lager and heavier construction than conventinal hot rod or drag car bars so they are well suited to the weight of the truck.  Kustom bitz can also perfrom the EA to AU falcon independant front end installation on these models. Each installation is externally engineered, and certificate provided. Call us for more details.