One of the most effective ways to improve the stiffness and handling of GM A/G Body is to box the factory chassis. This process could take considerable time with measuring, cutting and fitting steel panels, however Hellwig Products is making the task easy and even more effective with its custom fit Frame FX kit.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1970,1972	Buick	Skylark	350
1968-1972	Buick	Skylark	Base
1968-1972	Buick	Skylark	Custom
1968	Chevrolet	Chevelle	300
1968-1969	Chevrolet	Chevelle	300 Deluxe
1968,1970-1972	Chevrolet	Chevelle	Base
1968-1972	Chevrolet	Chevelle	Concours
1969-1972	Chevrolet	Chevelle	Concours Estate
1969-1972	Chevrolet	Chevelle	Greenbrier
1968-1972	Chevrolet	Chevelle	Malibu
1968-1972	Chevrolet	Chevelle	Nomad
1968-1972	Chevrolet	Chevelle	SS
1970-1972	Chevrolet	Monte Carlo	Base
1968-1972	Oldsmobile	Cutlass	Base
1972	Oldsmobile	Cutlass	Cruiser
1968,1971-1972	Oldsmobile	Cutlass	S
1968-1972	Oldsmobile	F85	Base
1968-1972	Pontiac	GTO	Base
1970-1971	Pontiac	GTO	The Judge
1968-1972	Pontiac	LeMans	Base
1972	Pontiac	LeMans	Luxury
1969-1970	Pontiac	LeMans	Safari
1970-1972	Pontiac	LeMans	Sport
1971	Pontiac	LeMans	T37