6R140 Transmission Rebuild Kits

If your 6R140-equipped Super Duty is having transmission issues or just has a worrying amount of miles on it, then a 6R140 transmission rebuild kit from Tier One can get your truck back into fighting shape. Each of these 6R140 rebuild kits come with everything you need to give your F250 or F350's transmission a full overhaul while giving it the ability to handle more horsepower and torque. Tier One's 6R140 transmission rebuild kits include a bunch of performance and reliability upgrades that allow you to take your Super Duty to the next level of performance with aggressive tuning, big turbos, oversized injectors, exhaust upgrades, and whatever else you can throw at your truck. Our rebuild kits come with components that can tackle heavy towing, aggressive off-roading, and even track and sled pull use without letting you down. Also check out our complete 6R140 transmissions and our 6R140 valve bodies!