SRT STAGE I 4L80E
?ۢ 6 Direct Clutches and 6 Koleene Steels (1 Additional Direct Clutch using forward steels)
?ۢ 5 Koleene Forward Steels
?ۢ 4 Koleene Intermediate Steels

SRT STAGE II 4L80E
?ۢ 6 Direct Clutches and 6 Koleene Steels (1 Additional Direct Clutch using forward steels)
?ۢ 5 Koleene Forward Steels
?ۢ 4 Koleene Intermediate Steels
?ۢ Sonnax HD Forward Clutch Hub
?ۢ 4L80E Power Tow Shift Correction Kit

SRT STAGE III 4L85E
?ۢ 6 Direct Clutches and 6 Koleene Steels (1 Additional Direct Clutch using forward steels)
?ۢ 5 Koleene Forward Steels
?ۢ 4 Koleene Intermediate Steels
?ۢ Sonnax HD Forward Clutch Hub
?ۢ 4L80E Power Tow Shift Correction Kit
?ۢ 5 PINION FRONT PLANETARY & 5 PINION REAR PLANETARY (4L85E)

SRT STAGE IV 4L85E
?ۢ 6 Direct Clutches and 6 Koleene Steels (1 Additional Direct Clutch using forward steels)
?ۢ 5 Koleene Forward Steels
?ۢ 4 Koleene Intermediate Steels
?ۢ Sonnax HD Forward Clutch Hub
?ۢ 4L80E Power Tow Shift Correction Kit
?ۢ 5 PINION FRONT PLANETARY & 5 PINION REAR PLANETARY (4L85E)
?ۢ BILLET INPUT SHAFT
?ۢ BILLET INTERMEDATE SHAFT

Updates to the Transmission:

• Updated TransGo Actuator Feed Limit Valve
  Also included is the TransGo Actuator Feed Limit Valve which requires a special reaming tool, that re-bores worn out aluminum 4L80E valve bodies which is typically an issue when time for a rebuild, and allows installation of this special high quality valve. This problem is the NUMBER ONE most overlooked issue by other re-builders. One indicator of this issue is the 2nd gear starts, 3rd neutral condition, no 4th gear, codes 68, 85, 86, and 87 and direct clutch breakage. The OEM actuator feed limit (AFL) valve has a large reaction area and is greatly affected by side loading, which wears the valve body bore. The EPC solenoid oscillates the torque signal and AFL oil, which increases valve action. As bore wear increases, oil pressure is reduced to the shift solenoids, which causes solenoid and ratio codes. The same AFL oil loss results in lower line pressure. If this valve is not installed, even after a rebuild transmission can have these issues and can lead to transmission failure the P1870 Code. If this valve is not installed, even after a rebuild transmission can become overheated and as a result can burn up quickly do to torque converter slippage, caused by the badly worn valve body casting in the converter clutch regulator valve bore.
• Superior Shift Correction Package
  This shift correction kit corrects with these common issues: Runaway high pressure, Erratic pressure rise, Converter lock-up shudder. Inconsistent shift feel, Shift solenoid filter blow-out, and Premature unit failure
  A complete pressure regulator valve train is supplied in the 4L80-E kit. This corrects Fail-safe, runaway high pressure that will crack the case if not corrected. The PR valve train supplied in this Shift Correction Package will stop runaway high pressure before it happens.

This transmission comes with a 1 Year 36,000 Mile Warranty with the purchase of a new torque converter. We offer an extended Warranty 2 Year 50,000 Mile Warranty, or a 3 Year 100,000 Mile Warranty for an additional charge.

Any and all shipping costs, including freight damage claims. Rental cars, loss of work, any labor costs, removal/reinstall fees, towing costs, inspection fees and any other incidental costs or damages which may be associated with product failure. Any product that has been physically altered, improperly installed or maintained. Any product used in an improper application, abused or not used in connection with the proper parts.

Buyer is required to pay the core deposit up front. Core must NOT have any internal hard part, or case damage, otherwise there will be additional charges deducted from your core deposit for the damaged hard part(s) or case. Initial shipping cost only covers one-way shipping. Return shipping cost for the transmission core is not included. Return shipping cost is deducted from your core deposit refund, after returned core passes inspection.

Majority of units are in stock, in the unlikely case we do not have one in stock, they are quickly available, in most cases, as little as one business day. There are many different variations of this transmission model available so please make sure we get a VIN number when or after you place the order.