IMO rail type buggies are built with smaller lighter weight tubing that would not withstand a rollover with the additional weight a rock bouncer has. The axles alone can add another 600-1000 pounds to the equation as well as the motor and transfercase. Years ago, Scott from Southern Offroad started a build by adding an independent front end under his rail buggy. Never got finished as far as I know, but he was onto something back then.
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