4L60E Input Drum 1987-2014, new and ready to install. Fits the 4L60E. Ships fast from the USA.
Searching for a 4L60E input drum because your Silverado, Sierra, Tahoe, Suburban, S10 or Camaro flares on the 1-2 shift, slips in overdrive, or lost Reverse? This new GM drum carries reference number 24245624, which GM catalogs as the reverse input clutch housing for the 700R4 and 4L60E family. Many shops simply call it the input drum or reverse drum. It is the part to buy when the band surface on your old one is glazed, grooved or heat-checked, or when the drum has cracked.
This drum sits just behind the pump and does two separate jobs. Its outside diameter is the friction surface for the 2-4 band: when the band squeezes it, the drum and the reaction sun shell splined to it are held still, and that gives you 2nd and 4th gear. Its inside houses the reverse input clutch pack and piston, which drive the same sun shell for Reverse. One housing therefore affects three gears, and wear on either face shows up in very different ways.
These overlap with other common 4L60E faults, such as a stripped sun shell or a worn pressure control solenoid setting code P0748, so do not buy hard parts on symptoms alone.
Scan for codes and check line pressure first; low pressure will slip a perfect band. If there is no Reverse, separate a reverse input problem from a low-reverse clutch problem using our 4L60E low-reverse clutch failure guide. With the unit apart, lay a straightedge across the band surface and look for light under it, then air-check the reverse input circuit and listen for a firm apply. Our 4L60E common problems guide walks through the other failures that share these symptoms.
The listing covers 1987 through 2014, the full run of the 700R4 into the 4L60E era, and 24245624 interchanges across 700R4, 4L60, 4L60E, 4L65E and 4L70E applications. Over that span GM revised bushings and internal details, so match the part number on your old drum or compare it side by side with the photo. If you are unsure, send us your year and VIN before ordering. Other parts for this unit are on our 4L60E parts page.
If the band is burnt, the rest of the unit usually saw the same heat. A complete 4L60E rebuild kit with frictions, steels and band covers the soft parts in one order.
| Fits | 4L60E 1987-2014 |
| Part type | Input Drum |
| Condition | New |
| Brand | GM |
| Reference | 24245624 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It carries GM reference 24245624, which is the reverse input clutch housing: the drum the 2-4 band wraps around. The input housing with the pressed-in turbine shaft is a different part. Compare your old drum to the photo if you are not sure which one failed.
The 24245624 drum is listed for 1987-2014 700R4 and 4L60E family units, which includes most 4L60E trucks of that era. Because GM made running changes, send us your year and VIN and we will confirm before it ships.
If a straightedge shows a dish or you can feel a step where the band rode, replace it. A new band on a worn surface only contacts the edges and tends to slip again quickly, especially with a wider band.
At minimum a new 2-4 band and reverse input piston seals plus frictions and steels for the reverse input pack. If the unit failed from heat, a full rebuild kit and a check of the sun shell are worth doing at the same time.
GM specifies Dexron VI ATF for the 4L60E, and it is backward compatible with earlier Dexron fills.
