Master rebuild kit for the Ford 10R80 10-speed: all frictions, steels, and a full overhaul gasket and seal set for 2017-2022 F-150 and Mustang.
This is a complete master rebuild kit for the Ford 10R80 10-speed, part number SNTRK-10R80. It carries the friction clutch plates, the matching steel plates and a full overhaul gasket and seal set, so a torn-down unit can be rebuilt from one box. It is meant for 2017-2022 F-150, 2018-2022 Mustang and Expedition, 2019-2022 Ranger and 2018-2022 Navigator owners whose truck slips, flares between gears, smells burnt or has clutch material in the pan, and whose shop has already decided the transmission has to come apart.
GEARS Magazine breaks the 10R80 down into four planetary gear sets, one mechanical one-way clutch, six friction clutches and a two-piece valve body with eight solenoids. Every one of the ten forward gears is made by holding or driving parts of those planetaries with a pair of the six clutches, so a single glazed or burnt pack shows up in several gears, not just one. A master kit renews all six packs at once, frictions and steels together, and replaces the piston seals, sealing rings and gaskets that hold apply pressure. That matters on this unit because Sonnax names sealing ring and hub bushing wear as one of the biggest causes of lost pressure on Ford and GM 10-speeds, which leads to slipping, neutral conditions and ratio codes.
Harsh shifts alone are not proof of worn clutches on a 10R80. GEARS Magazine notes that a large share of complaints on this unit were fixed with updated programming, and Ford has issued TSBs for harsh or delayed engagement that start with a reprogram and the adaptive learning drive cycle. Scan every module, clear codes, run the relearn and recheck before you condemn the clutches. If ratio codes return, the fluid is burnt and the pan has friction debris, the unit needs to come apart. Our 10R80 common problems guide covers the TSB cases, and the 10R80 rebuild cost guide lays out what drives the labor and parts bill.
The listing covers the 10R80 behind the 3.0L Power Stroke, 3.3L, 3.5L EcoBoost and Raptor in the 2017-2022 F-150, the 2.3L EcoBoost and 5.0L GT in the 2018-2022 Mustang, the 3.5L in the 2018-2022 Expedition and Navigator, and the 2.3L in the 2019-2022 Ranger. The listing also names the 2021-2022 Bronco, but the Bronco uses the lighter 10R60, so Bronco owners should confirm with us before ordering. Clutch counts and plate thickness can change with updates, so compare the old plates with the kit and send us your year and VIN if you are unsure. Every other part for this unit is in our 10R80 parts collection.
This is a bench rebuild, not a fluid service. Stack each clutch pack to the factory count, measure clearance and set endplay before final assembly. The 10R80 clutch pistons sit under return spring packs, and the 10R80 clutch piston compressor tool kit makes snap ring removal safe. Sonnax recommends air checking each drum and then the whole assembly through the pump before it goes into the case, so leaking sealing rings or shaft plugs are found on the bench. Inspect the low one-way clutch and replace it if it shows wear; Transmission Digest says new parts are the only repair. If the truck had shift codes, look at the solenoids too, and the 10R80 solenoid kit covers that in the same job. Refill with Mercon ULV only. Sonnax lists about 13 quarts for a dry 2020 F-150 4x4 and warns that one quart too many can cause venting and overheating, so set the final level hot. Run the adaptive learning drive cycle before handing the truck back.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The friction clutch plates, the matching steel plates and an overhaul gasket and seal kit. Hard parts such as drums, bushings, the one-way clutch and solenoids are sold separately.
The listing mentions the 2021-2022 Bronco, but the Bronco uses the 10R60, a different transmission. Send us your VIN before ordering for a Bronco.
Only if the clutches or seals are worn. Many 10R80 harsh-shift complaints are fixed with Ford software updates and an adaptive relearn, so check the TSBs and codes first.
Mercon ULV only. A dry 2020 F-150 4x4 takes about 13 quarts. Set the final level hot, because overfilling causes venting and overheating.
Yes. Ford requires the adaptive learning drive cycle after a rebuild so the module can relearn clutch fill and shift pressure.
