Increase the performance of a Jeep Wrangler off-road vehicle by installing these Teraflex monster flexarms, front lower. These flexarms are stronger than the original factory installed flexarms and provide vehicles with interchangeable rod ends capability. The flexarms help to provide better control of the vehicle. Teraflex monster flexarms, front lower are easy to install with basic tools and can be installed in less than an hour. The flexarms are made of steel tubing and uses 14mm bolts to attach to the vehicle.