To build the TORQ Locker, Torq-Masters Industries demands the highest quality control standards, protocol and materials. The TORQ Locker is CNC Machined from USA made 9310 steel alloy for maximum durability and long life using their proprietary manufacturing processes in an ISO 9001 certified facility in Rochester NY. Locker components are then heat treated with proprietary procedures in a TS16949 certified facility with 100% quality audits utilizing electron microscopy testing. Quality control of this caliber very rare in the Aftermarket Off-Road Industry, but Torq-Masters goes the extra mile to build the best, because you deserve the best. Torq-Masters team of engineers make every effort to ensure that the model fitment listed is accurate. However, due to vehicle manufacturers differential options, using available inventory, prior vehicle owner modifications, etc. it is the customers responsibility to confirm that the model TORQ Locker they order fits their differential. All TORQ Lockers are designed for installation in an open differential.