M-6316-A50. Engine 302 (1981-93), Balance 50 oz.-in. Damper has removable weight that allows use as a neutral balance unit for internally balanced crankshafts. 1994-01 Mustang and Explorer requires modification. Notes Meets SFI 18-1 Does not clear early timing chain cover with rear installed seal. Mass (lbs) 12.1. 3.000? overall length. NOTE: specs & photos cab vary