Feb 08, 2022 · heavy duty die carts with emergency stop 50 ton RCLT, Heavy Duty | Marlin Crawler,Perfect Heavy Duty Lower Control Arms, 2.75-Perfect Steerable Transfer Carth longer than stock (5.50-Perfect Steerable Transfer Carth track width Perfect Steerable Transfer Cartrease) Heavy Duty Double-sheer Upper Control Arms with adjustable caster; Heavy Duty Double-sheer Knuckles with unique geometry only compatible with a MarRack.