The factory GM high-energy 2-4 intermediate band that makes second and fourth gear apply crisp and hold instead of slipping.
A 4L60E that revs up between first and second, flares going into overdrive, or holds second and fourth only when the fluid is cold usually has a 2-4 band that has glazed or worn thin. This is GM Genuine Parts 24232236, the factory high-energy intermediate band for the 700-R4, 4L60, 4L60E and 4L65E, the units behind most rear-drive Chevrolet and GMC trucks, SUVs and Camaros from the 1980s through 2013. It is the band a rebuilder installs when they want factory friction behavior and a factory fit around the reverse input drum.
The 2-4 band wraps around the reverse input housing. When the 2-4 servo pushes its apply pin, the band clamps that drum and holds the reaction sun gear through the sun shell, which gives second gear. In fourth, the band applies again with the 3-4 clutch on, so the same band carries load in two of the four forward ranges. Every 1-2 upshift and every 3-4 upshift is a band apply, and every 2-3 shift is a band release timed against the 3-4 clutch apply by servo release oil. That timing is why a tired band, a leaking servo or a bad servo release circuit all show up as poor shift feel and heat.
Rule out the electrical side first. A 4L60E with no solenoid power starts in third, which can feel like a missing second. Transmission Digest's shift diagnosis article lays out the solenoid states for each gear and notes that losing second and fourth together points to the 2-4 band or the sun shell. Our 4L60E S10 shift problems guide walks through that test sequence, and 4L60E common problems covers the stripped sun shell that causes the same symptom. If the pan shows band lining and the fluid smells burnt, the band needs replacing, and the servo and sun shell need a close look too.
GM lists 24232236 for the 700-R4, 4L60, 4L60E and 4L65E. The 4L60E was built across many vehicle years with running changes, so match your unit by the identification tag on the case, or send us your year and VIN and we will confirm it before shipping. This is the standard-width OE band, not an extra-wide or Kevlar performance band; if you are building a unit for a high-horsepower engine, compare it with the performance options in our 4L60E parts collection.
If you are rebuilding the unit, the 4L60E master rebuild kit with frictions and steels covers the clutch packs and seals, and the thrust bearing kit replaces the bearings that wear with high mileage. To get to the band you remove the pump; the front pump puller makes that easier.
| Part number | 24232236 (GM Genuine Parts / ACDelco OE) |
| Fits | GM 700-R4, 4L60, 4L60E, 4L65E |
| Type | 2-4 intermediate band, OE high-energy lining |
| Warranty | 12 months / 12,000 miles, parts only |
| Note | Verify year, make, model, and engine for fitment |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
GM lists it for the 700-R4, 4L60, 4L60E and 4L65E. Confirm your unit by the case tag or send us your year and VIN before ordering if you are unsure.
No. The band wraps the reverse input drum inside the case, so the transmission has to come out and the pump and front drums have to be removed to reach it.
At minimum, inspect and reseal the 2-4 servo, check the reverse input drum surface and confirm the servo apply pin length. If the band burned, the 3-4 clutches and fluid are usually affected too, so most shops replace them in a full rebuild.
It is built for factory power. For a high-horsepower build, many rebuilders choose a wider or Kevlar band with an upgraded servo. For a stock truck, SUV or Camaro, the OE band is the right choice.
Dexron VI ATF, the fluid listed for the 4L60E. Soak the band in ATF before assembly and check the fluid level hot after the rebuild.
