mountuneusa.com Toggle Search Account Checkout Cart Shop Performance F-150 Raptor Performance F-150 Raptor Body & Cargo F-150 Raptor Intake & Exhaust F-150 Raptor Suspension F-150 Raptor ECU Tuning & Programming F-150 Raptor Power Fiesta ST Performance Fiesta ST Brakes Fiesta ST Drivetrain Fiesta ST ECU Tuning & Programming Fiesta ST Intake & Exhaust Fiesta ST Interior / Styling Fiesta ST Suspension Fiesta ST Power Fiesta ST Wheels Focus RS/ST Performance Focus ST/RS Brakes Focus ST/RS Drivetrain Focus ST/RS ECU Tuning & Programming Focus ST/RS Intake & Exhaust Focus ST/RS Interior / Styling Focus ST/RS Power Focus ST/RS Suspension Focus ST/RS Wheels Focus RS Performance Parts Ranger Performance Ranger Body & Cargo Ranger ECU Tuning & Programming Ranger Intake & Exhaust Ranger Power Ranger Suspension Bronco Performance Honda K20C1 Performance EcoBoost Performance Packages Fiesta ST Packages Focus ST Packages Focus RS Packages F-150 Raptor Packages MRX Performance Series MRX Series for F-150 Raptor MRX Series for Fiesta ST MRX Series for Focus RS/ST Street Legal Performance Ford Fiesta ST Ford Focus RS Ford Focus ST Ford Trucks Parts & Components Browse by Engine Honda K20C1 Engines Ford EcoBoost Engines Ford Duratec Engines Ford Kent & Lotus Based Engines Browse by Components Brake Systems Cooling Systems Crate Engines Drivetrain Systems Engine Internals Engine & Transmission Mounts Exhaust Systems Fuel Systems Hoses & Clamps Ignition & Electrical Systems Intake Systems Intercooler Systems Oil Systems Specialty Tools Suspension Systems Turbochargers Browse by Manufacturer Mountune Mountune Racing Engines ACL Race Series ACT Clutch AEM Performance Callies Performance COBB Tuning Fifteen52 Wheels Ford Performance Giro Disc JE Pistons Motorcraft Motul Piper Cams Powerflex Bushings Quaife Differentials Radium Engineering SCAT Crankshafts Stoptech Brakes Supertech Performance Syvecs ECU XClutch Xtreme-DI Motorsport Engine Building & Assembly Engine Development & Machining Engine Testing & Data Acquisition Engine Parts & Component Restoration Mountune Racing Engines Ford EcoBoost 4-Cyl. Engines Ford EcoBoost V6 Engines Ford Kent & Lotus Engines Honda K-Series Engines Merch & Gear WINTER SALE Search site Submit search Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Parts & Components > Browse by Components > Drivetrain Systems Choose a sub-category: Clutches & Flywheels Differentials Gearbox Drivetrain Systems Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page 1 2 Quaife ATB Differential - Focus ST 2013-2018 Price:$999.00 Sale price:$849.00 Savings: $150.00 (10) Quaife ATB Differential - Fiesta ST 2014-2019 Price:$1,049.00 Sale price:$889.00 Savings: $160.00 (5) mountune Roll Restrictor / Rear Motor Mount - Fiesta Price:$159.00 (71) ATB Differential Installation Kit, Fiesta ST Price:$199.00 (3) mountune ATB Differential Installation Kit - Focus ST Price:$144.00 (5) mountune Roll Restrictor / Rear Motor Mount - Focus ST / RS Price:$159.00 (148) ACT Heavy Duty Clutch - Focus ST 2013-2018 Price:$1,000.00 Sale price:$899.00 Savings: $101.00 (2) ACT Race Clutch - Focus ST 2013-2018 Price:$1,029.00 Sale price:$803.00 Savings: $226.00 (1) Quaife ATB Differential - Focus RS 2016-2018 Price:$1,199.00 Sale price:$989.00 Savings: $210.00 (4) Quaife Differential Installation Kit - Ford Focus RS Price:$309.00 (2) mountune Focus RS PTU Brace Upgrade Price:$169.00 (30) XClutch Focus RS / ST - Ceramic Twin Disc Price:$1,902.70 Heavy Duty Drive Axle Set - Focus ST / Focus RS Price:$1,099.00 Ford MMT6 Carbon Synchro Set - Focus ST/RS Price:$369.00 (8) Ford MMT6 Countershaft Bearing and Retaining Bolt Kit Price:$149.00 (1) Ford MMT6 Carbon Synchro Complete Install Kit - Focus ST Price:$599.00 (2) Ford MMT6 Carbon Synchro Complete Install Kit - Focus RS Price:$669.00 (1) Ford MMT6 Gearbox Transmission Service and Upgrade Price:$1,799.00 (5) Ranger Ford Performance Differential Cover Kit Price:$271.00 Sale price:$259.00 Savings: $12.00 Quaife ATB QDF5Z/22 Differential - Ford English 22T Price:$859.00 Sale price:$729.00 Savings: $130.00 Quaife QKE3Z 4 Speed Synchromesh Gearkit - Ford Bullet (2000E) Price:$1,729.00 XClutch Focus RS / ST - Twin Sprung Organic Disc Price:$1,902.70 (2) Ford Kent / Lotus Twin Cam Lightweight Flywheel Price:$389.00 Mountune Stage 1 Focus ST Gearbox Price:$4,799.00 Sale price:$4,749.00 Savings: $50.00 (2) XClutch Lotus Twin Cam Heavy Duty Clutch Price:$429.00 ACT Heavy Duty Clutch - Focus ST/RS 2013-2018 Price:$1,733.00 Sale price:$1,549.00 Savings: $184.00 Ford MMT6 Upgraded Steel Cage Countershaft Bearing Price:$69.00 Sale price:$59.00 Savings: $10.00 XClutch Focus RS/ST - Stage 1 Single Sprung Organic Disc with Flywheel Price:$1,478.70 (2) MOTUL MULTI DCTF - Dual Clutch Transmission Fluid (1L) Price:$22.12 (1) MOTUL Gearbox 80w-90 (1L) Price:$19.79 1 2