5R110W Planetary 2003, new and ready to install. Fits the 5R110W. Ships fast from the USA.
A 6.0L or 6.4L Power Stroke Super Duty that suddenly loses fifth gear, or a TorqShift that left chunks of a planet carrier in the pan after heavy towing or a tuned engine, usually broke at the front of the gear train. This listing is a new billet overdrive planet housing for the 5R110W, built by TCS Products in Canada from 4140 HTSR heat-treated billet steel for trucks making more power than the factory carrier was designed to handle.
The 5R110W uses a simple overdrive planetary at the very front of the transmission, ahead of the main gear train. The overdrive planet housing is the carrier that holds the pinion gears and pins and transmits torque through its splined hub. When the overdrive clutch and coast clutch hold or release the overdrive sun gear, this carrier is what drives the rest of the transmission. The factory housing is the weak point on high-horsepower trucks: the splines strip or the carrier cracks, and the truck loses drive or overdrive with very little warning.
Read the listing carefully, because this is a housing, not a complete gearset. It is the 4-pinion carrier body with an assembly pin to make needle bearing installation easier and pinion staking pins so no welding is needed to retain the pinion shafts. You transfer or replace the pinion gears, needle bearings and thrust washers from your own unit or a service kit.
Shift complaints on this unit are more often solenoid body faults than broken hard parts, so start with a scan tool and fluid check. Our 5R110 shift solenoid symptoms guide covers the electrical side. If the pan shows heavy metal and the truck has lost a gear outright, the unit is coming out anyway, and our 5R110 rebuild wear points guide walks through what to inspect at the front of the case once it is apart.
The listing specifies 2003-on 5R110W TorqShift units with the 38-tooth overdrive sun gear and the 94-tooth overdrive ring gear used in early applications. That matters: Transmission Digest documented that Ford changed the overdrive planet, sun gear and ring gear tooth counts in 2007, with separate gas, diesel and PTO packages, so a later truck may not use this carrier. Count the teeth on your overdrive sun and ring gear before ordering, or send us your year and VIN and we will check it. The factory part this replaces is listed as 3C3Z-7B446-AA. You can see every other front-section and rebuild part we stock on our 5R110W parts collection.
If the overdrive carrier failed, most builders go through the whole unit with a 5R110W master rebuild kit and a new 5R110W solenoid kit at the same time, since the truck is already on the lift.
| Fits | 5R110W 2003 |
| Part type | Planetary |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is the billet 4-pinion overdrive planet housing (carrier) with an assembly pin and pinion staking pins. You install pinion gears, needle bearings and washers from your unit or a kit.
It is built for units with the 38-tooth overdrive sun gear and 94-tooth overdrive ring gear. Ford changed overdrive tooth counts in 2007, so count your gear teeth or send us your year and VIN before ordering.
The listing is aimed at high-horsepower and extreme-use trucks where the factory carrier strips splines or breaks. The 4140 heat-treated billet housing is made to stop that failure.
No. Staking pins are supplied to retain the pinion pins, so no welding is required.
Use Mercon SP, and flush the cooler and lines first so debris from the failed carrier does not circulate through the rebuilt unit.
