The Energy Suspension Hyper-Flex master bushing set for 1998–1999 Toyota 4Runner 4WD in black swaps soft OEM rubber for Hyper-Flex™ polyurethane that withstands chemicals and UV exposure. It helps maintain proper caster and camber, reduces wheel hop under acceleration, and provides improved suspension stability with a service life longer than original rubber components.
Energy Suspension 98-99 Toyota 4Runner 4WD Black Hyper-Flex Master Bushing Set