4L60E Shift Kit 2000, new and ready to install. Fits the 4L60E. Ships fast from the USA.
The 2000 model year put the 4L60E behind more engines than almost any other year: the new GMT800 Silverado and Sierra 1500, Tahoe, Yukon and Suburban, the S10, Sonoma and Blazer, and the LS1 Camaro and Firebird. Twenty-plus years on, the complaints are predictable: converter shudder with a P1870, a 1-2 that slams, a 2-3 that flares, and a 3-4 clutch pack that burns up. This listing is the red TransGo Reprogramming Kit box, shown with a valve body separator plate, gasket set and the kit's springs and valves, for a full valve body recalibration on a 2000 unit.
The 4L60E shifts with a band and clutches, and how fast each one applies is set by the accumulators, servo and line pressure. A stock unit is tuned soft for comfort, and that slip time is what wears the 2-4 band and cooks the 3-4 clutch. TransGo's 4L60E-HD2 kit, sold as a Reprogramming Kit, adds a new 1-2 shift valve, TCC regulator and isolator valves, a boost valve, pressure regulator springs and an oversized 1-2 checkball, then recalibrates the 1-2 and 3-4 accumulators and servo with a more aggressive line pressure curve. It also includes 3-4 and forward clutch return springs and reverse input orifice cup plugs. The new TCC regulator and isolator valves matter on a 2000 truck, because a worn regulator bore leaks converter apply oil and sets the slip code.
Scan for codes. A P1870 with no solenoid circuit codes points at the valve body, while circuit faults point at the solenoids or the internal harness, which our 4L60E shift solenoid guide shows how to test. For truck-specific diagnosis, read the Silverado 1500 shift problems guide. If the truck has lost 3rd and 4th or there is friction material in the pan, the clutches or sun shell need attention before a kit will help.
This listing is for a 2000 4L60E. TransGo lists the kit for 1993-2015 4L60E, 4L65E and 4L70E (not hybrids), so the kit itself is not year-picky; the separator plate is where the year matters, because GM changed plates over the production run. Lay the plate in the photo over your original and match every feed hole before you install it, or send us your year and VIN to check. Gear Command, TransGo's manual downshift and gear hold feature, covers 1993-2008, so a 2000 unit gets it. More parts are in the 4L60E collection.
| Fits | 4L60E 2000 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, it is listed for the 2000 4L60E used in those trucks. TransGo covers 1993-2015 4L60E units with the kit; match the separator plate holes to your original, or send us your year and VIN.
Most of it. 2000 units have no input speed sensor, so TransGo allows the valve body portion in the vehicle. The 3-4 clutch return spring kit included in the box requires the transmission out.
It uses a firmer line pressure curve matched to recalibrated accumulators, so shifts are shorter and firmer, not violent. The goal is less slip time on the band and clutches.
When the shudder comes from TCC regulator bore wear, the new regulator and isolator valves address it. A converter that is already damaged, or burnt fluid, still needs attention.
Use Dexron VI. GM's current spec replaces the Dexron III the truck called for when new, and it is compatible.
