A seat belt test apparatus for testing a safety restraint system for a vehicle comprises a first, a second, and a third test stand, an impactor apparatus, and a resistor apparatus. The first, a second, and a third test stand are selectively fixed to a test bench. The first, second and third test stands each comprises a pulley disposed proximate a top end of each of the first, second, and third test stand. The first test stand further comprises a first pretensioner mount. The third test stand further comprises a second pretensioner mount.