4.6L/5.4L Tremec 3550 Cobra R Bellhousing Use to mate the Tremec 3550 transmission to the 4.6L/5.0L/5.4L modular engines Minor modification is required for transmission clearance and mounting in some applications Cast aluminum production style bellhousing Also works with 5.0L Ti-VCT engine Can also be used with starter index plate M-7007-A Can also be used with clutch release lever M-7515-A Can also be used with bellhousing installation kit M-7771-A