genuine gear version of the lock right locker. replaces spider gears. installed for 1 month, never off road, customer didn't like the onroad feel. he only goes off road 1 time per year. older gentleman that takes a 1 weak desert trip had wanted more traction for a good price. i put him back to stock. this is the 4cyl version $200 or trade for the v6 version, in fresno 93727, ship on your dime.