4L65E Planetary 2001-2006, new and ready to install. Fits the 4L65E. Ships fast from the USA.
If your 2001-2006 Silverado, Sierra, Tahoe, Suburban, Avalanche or Yukon has developed a speed-related whine, or a teardown turned up loose pinions and needle bearings in the pan, the front planet carrier is the part to replace. This is a new 5-pinion front planet, also called the input or forward planetary carrier, for the 4L65E and the 4L60E and 700-R4 it grew out of. It cross-references to part number 74582, interchange 77747B and GM 24218063, and it is made in the USA.
The carrier holds five pinion gears on hardened pins and needle bearings, meshed between the front sun gear and the front ring gear. The input housing drives one member of this set and the reaction set behind it holds or drives another, and the combination gives the 4L65E its 3.06, 1.62, 1.00 and 0.70 ratios. The carrier is splined to the output shaft and retained by the snap ring inside the front planet, so every forward gear passes torque through these pinions. That constant load is why the 2001-2006 4L65E trucks, often working behind a 5.3L or 6.0L with a trailer, wear out pinion needles and pins long before the gear teeth themselves give up.
Rule out a pump or converter noise first: a whine that changes with engine speed in Park points at the pump, not the gear train. Our 4L65E pump failure guide covers that check. If the noise follows road speed, drop the pan and look for needle rollers and bright metal. With the unit apart, grab each pinion and check for side play and rough rotation; any play means the carrier is done. For the other parts that fail alongside it, including the reaction shell, see 4L65E Silverado 1500 common problems.
This carrier is listed for 2001-2006, the core 4L65E years in GM full-size trucks and SUVs, and it also interchanges into 4L60E and 700-R4 front sets that use the 5-pinion design. It is the carrier only. Reuse your front ring gear, hub, sun gear and thrust bearings if they pass inspection, or buy the complete reman front planetary set if they do not. Pay attention to model year at the boundary: Sonnax notes GM changed the reaction carrier, shaft and bearing in March 2007, and mixing early and late gear train parts causes endplay and snap ring problems. Your 2001-2006 unit predates that change, but if the transmission has been swapped or rebuilt before, verify what is in it. Send us your year and VIN if in doubt, and see every hard part we stock in the 4L65E parts collection.
| Fits | 4L65E 2001-2006 |
| 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. This is the 5-pinion front planet carrier on its own. Reuse your ring gear, hub, sun gear and bearings if they inspect good, or choose our complete reman front set.
2001-2006 GM full-size trucks and SUVs with the 4L65E, such as the Silverado, Sierra, Tahoe, Suburban, Avalanche and Yukon, and 4L60E and 700-R4 units that take the 5-pinion front planet.
It cross-references 74582, interchange 77747B and GM 24218063. Compare against the number or design of your old carrier before installing.
A pump whine follows engine RPM, even in Park. A planetary whine follows vehicle speed and usually leaves needle rollers or bright metal in the pan.
Thrust bearings and washers that show wear, the sun shell if its splines are loose, and the transmission fluid and filter. Flush the cooler lines to remove debris.
