Tilton 5.5" (140mm) Ultra metallic clutch 99T rear mount starter bellhousing packages. These packages include a magnesium rear mount starter bellhousing, 2 or 3 plate Tilton ULTRA metallic clutch with 1 5/32" x 26 drive plates, 99-tooth cover mount ringgear, button flywheel, 2000 series release bearing, Tilton starter motor.