Lethal Performance Magnum XL T56 Transmission Swap Kit (2018+ Mustang GT / 2016-2020 Shelby GT350)

We’re proud to release our Magnum XL T56 Upgrade kit for the 2018+ S550 Mustang GT and 2016-2020 Shelby GT350. All of the necessary components required for the swap are included in this package. Driveshaft tunnel requires minor trimming/modification for T56 reverse lockout clearance.

Kit Includes:

• Tremec Magnum XL Transmission
• FMC-BR3Z-7A508-B Slave Cylinder
• FDSH25-A-MAG-BILLET is specifically for 2015-2017 Manual GT’s with Magnum conversions.
• FDSH44-A-MAG-BILLET is for the 2015-2017 Automatic and ALL 2018+ (Auto and Manual) cars.
• BT-T56HARNESS-T56-RLM Conversion Wire Harness
• ARP-156-2801 Flywheel Bolts
• M-7600-C Pilot Bearing
• MCL-139253 Clutch Line

Clutch Options:

• MCL-6932-07 + 463458 (RXT 26 Spline with Lightened Steel Flywheel)
• MCL-6932-07HD + 463458 (RXT HD 26 Spline with Lightened Steel Flywheel)

INSTALLATION NOTE: When Installing LPX/LPXHD clutch, DO NOT use any assembly lubricant on the splines of the input shaft.

*** PP2 or PP1 + magneride cars will not be able to utilize this system without deleting magneride. This requires extensive modification. 

*** 19+ MT82 / rev match cars will require extensive modification to the bowler harness to account for the additional 6 pin sensor… use at your own risk ***

Note: 2019+ Reverse lights no longer work with swap.