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
1965-1967	Buick	Gran Sport	Base
1964-1967	Buick	Skylark	Base
1967	Buick	Special	Base
1967	Chevrolet	Chevelle	300
1967	Chevrolet	Chevelle	300 Deluxe
1964-1966	Chevrolet	Chevelle	Base
1965-1966	Chevrolet	Chevelle	Deluxe
1964-1967	Chevrolet	Chevelle	SS
1964-1967	Chevrolet	Malibu	Base
1964-1967	Oldsmobile	Cutlass	Base
1964-1967	Oldsmobile	Cutlass	Holiday
1967	Oldsmobile	Cutlass	Turnpike Cruiser
1964-1967	Oldsmobile	F85	Base
1964-1966	Oldsmobile	F85	Deluxe
1966	Oldsmobile	F85	Holiday
1964-1967	Pontiac	GTO	Base
1964-1967	Pontiac	LeMans	Base