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A modeling study was conducted to explore the potential for reducing rollover occupant injury via seat belt geometry modifications and the effect such modifications would have on frontal impact protection. MADYMO software was used to model the first roof-to-ground strike of a dolly rollover crash test as well as a frontal impact test using a facet-style human driver occupant in a sport utility vehicle. The objective of this study was to learn whether occupant protection could be improved for rollover without reducing occupant protection in frontal impact. The models were validated using crash test results. Seat belt anchor locations were independently varied in the models to examine the effects of shortening the length or increasing the angle of the lap belt, shortening the torso belt, or lowering the D-ring. Several combinations of the most promising independent anchor relocations were investigated first in near-side and far-side rollover and then in frontal impact.