4l60e shift kit decel servo code#
4l60e shift kit decel servo professional#

The reason Gearstar uses the one-transmission, one-builder approach versus a more common assembly-line process is simple. His initials are inscribed into the case along with a tag number that matches the number on the invoice. That builder is responsible for that transmission from the time the order is taken, through the building process, and finally until the customer has installed the unit in his vehicle. When you order a Gearstar transmission, it is assigned to the builder who specializes in that unit. All of these builders are experts in all automatics, but each one specializes in one specific type of unit. 'When Gearstar was first formed, we recruited the top five master builders out of a field of hundreds of technicians at Tri Star. Gearstar utilizes the most experienced technicians in the industry.' 'Each one of our transmissions is custom-manufactured to a car's specifications and application, taking into account horsepower and torque output, cam specs, rearend gear ratio, rear tire diameter, speedo type, vehicle weight, and vehicle use. Realizing that no company was offering anything other than off-the-shelf transmissions, Farah split from Tri Star and started Gearstar with the goal of manufacturing the finest performance automatic transmissions and converters available. 'The high performance or racing transmission customer is building his pride and joy, and the demands placed on these machines are very different from those placed on passenger vehicles,' he explains. While the bulk of production at Tri Star was as an OEM supplier, high performance transmissions were Farah's true calling.

4l60e shift kit decel servo professional#

This kit is a favorite of professional transmission rebuilders worldwide.Gearstar owner Zack Farah got his start in the transmission industry 28 years ago at Tri Star International, a company that built over 100 transmissions and 300 torque converters every day. Finally, the difference in driving characteristics once the kit is installed is remarkable. The kit also provides TCC regulator valve component options that will work with vehicles with or without active fuel management (AFM). Furthermore, the included drop-in USA-made TCC isolator and regulator valve features longer lands which restores the hydraulic integrity of the circuit by utilizing previously unused and therefore unworn areas of their bore. These changes work in concert with a slight increase in line pressure to greatly improve the overall durability and shift feel of the transmissions.

It includes components as well as modifications that recalibrates the entire accumulation system. The kit includes valve body, servo, pump and accumulator components and modifications designed to deliver increased durability while providing short smooth shifts as well as a more efficient TCC apply. The 3-4 clutch plate failure as well as the 2-3 flare up complaints are caused by an inconsistent pressure boost and poor overall calibration of the shift accumulation system.

4l60e shift kit decel servo code#

The TCC slip code leads to the harsh 1-2 upshift as the ECM recognized the TCC slip and commands high line pressure to avoid further TCC slippage and damage. The torque converter clutch regulator valve bore is very prone to wear causing the TCC slip complaints and related code. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems. The TransGo 4L60E SHIFT KITР’В® Valve Body Repair Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission.