47RE Planetary, remanufactured and ready to install. Fits the 47RE. Ships fast from the USA.
This is a rear planetary carrier for the Dodge 46RE and 47RE, the four-speed automatics behind Ram gas V8s, the 8.0L V10 and the 5.9L Cummins. The four pinion gears were refurbished and the carrier was fully inspected, so it comes in like-new condition rather than as a pulled core. It also ships with a brand-new Sonnax heavy-duty thrust washer, which matters on this unit because the original bimetal washer is one of the parts that usually wears first. If your teardown turned up loose or pitted rear pinions, or the truck whines pulling away and backing up, this is the part to replace.
Both transmissions share the same main-case layout: two planetary sets linked by a common sun gear, a front clutch, a rear clutch, two bands and an overrunning clutch, with a separate overdrive unit at the back. The rear carrier is the part that gets held. In Drive first gear the overrunning clutch locks it, and in manual low and reverse the rear band holds the low-reverse drum. Holding the rear carrier is what gives the 46/47RE its 2.45:1 first gear in combination with the front set, and its 2.21:1 reverse on the rear set alone. Pulling a loaded trailer up a ramp in reverse is about the hardest job this carrier ever does.
Match the noise to the gear. If it only happens in fourth, look at the overdrive gear set instead; if it follows engine speed in Park, suspect the pump. Rule out fluid level, a restricted cooler and band adjustment first with our 47RE common problems and fixes guide. On the bench, spin each pinion, check for side play, and measure end play; the factory spec for 46/47RE planetary end play is 0.006-0.048 in. Sonnax notes that worn gears, snap rings and splines are what usually push rear unit end play out of range.
This carrier fits the rear planetary position in the Dodge 46RE (A518) and 47RE (A618). Because the carrier is shared between the two, it covers gas and diesel Ram applications, but Chrysler did make running changes to the intermediate shaft and annulus splines over the years. Compare the pinion count and spline count with your old carrier, or send us your year and VIN and we will check it. The rear ring gear is not included; if yours is damaged, the matched rear planetary and ring gear from a 1997 47RE is another option. Everything else for the gear train is in our 47RE parts collection.
| Fits | 47RE |
| Part type | Planetary |
| Condition | Remanufactured |
| Brand | Sonnax |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, this rear planetary is used in both the 46RE and the 47RE. Spline changes happened over the years, so compare it with your old carrier or send us your year and VIN.
The refurbished four-pinion rear planetary carrier and a new Sonnax heavy-duty thrust washer. The rear ring gear, sun gear and snap rings are not included.
The original bimetal thrust washer wears and sheds debris, which opens up end play and lets the gears shift position. A heavy-duty washer holds its thickness much longer.
The rear gear set carries all the load in reverse and shares it in first, so whine in those two gears that goes away in second and third is a classic rear planet sign. Check fluid level and condition first.
Refill with ATF+4. Adjust the front and rear bands to the factory spec for your 46RE or 47RE and check the level hot in Neutral.
