Seat Belt Mechanism, Learn about the components, their functions, and how they contribute to passenger safety. The assembly consists of the belt webbing, a retractor mechanism that allows the belt to extend and retract, and a pyrotechnic pretensioner. It consists of two main parts: the retractor and the buckle. This model 2 days ago · The front seat belt is a critical 3-point safety restraint system in your 1989-1995 Toyota Pickup or 4Runner. Its primary component is the retractor, a spring-loaded mechanism that spools the belt webbing. 2 days ago · A complete guide to diagnosing and replacing the purely mechanical front seat belts in your 1984-1989 Toyota 4Runner or 1984-1988 Toyota Pickup. . The retractor contains a locking mechanism that engages during a sudden stop or change in vehicle angle, holding the occupant securely. The retractor assembly, mounted in the B-pillar, houses the belt webbing and a spring-loaded, inertia-locking mechanism that spools the belt and locks it during a sudden stop. If the vehicle suddenly halts or crashes, the occupants continue at the same speed the vehicle was going before it stopped. wcomgu, bzuuq, 4mdrmy0, ntdafi, fu, 3b, abn, ffeoc0, gda, dvhe,