Thats why it is paired with configurations that have a more powerful engine. For example, the 4L80E contains two-speed sensors, while the 4L60E has one. With either the 4L60E or 4L80E, you will need the same type of transmission fluid. It also provides a lot of torque in the first gear. What kind of changes did they make for towing? TCC PWM solenoid). The 4L80E is the electronic overdrive transmission that came from the TH400 lineup. Thom Taylor writer. On the other hand, the 4L60E might only cost $1,500. This duty cycle is maintained until a TCC apply is commanded. 1 piece TCC control valve in the valve body. TRANSMISSION M-F 8:00 AM to 4:00 PM PST You can interchange the two transmissions, but its not an easy swap. All 4L60E's had a 4-pinion planetary gear train. 4L6-FWD Forward. Pressure pulsation from poor PR valve control is the real danger, and a sure sign of this problem is gauge needle-bounce when testing line pressure. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs! Other sensors, wiring harnesses and electronic equipment can also be different. If you are using a Gen IV (58x) engine, the preferred transmission would be from a 2007 or newer application. I'd hate to burn up a trans towing, so what did they do??? Damage to the band, input/output shafts, sprag, etc. This item: GM Genuine Parts 8680501 Automatic Transmission 2-4 Band Servo Pin. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. You wont be able to place the bigger transmission in the space of the smaller one. TRANSMISSION STARTS IN FIRST AND THEN SHIFTS INTO NEUTRAL (4L60E/4L80E)? In comparison, the 4L60E can only handle up to 360 pound-feet of torque. Because of the application, the 4L80E is much heavier and larger than the other transmission. Toggle menu (844) 298-6404 The weak OE backing plate flexes during clutch apply, allowing heat to build up unevenly within the clutch packs limited space. The 4L60E can also work well in Jeeps too and is good for 4x4 applications due to its ability to handle high input torque. 732-276-8589Mon-Fri: 8:00am to 6:00pm ET DOHC Vs. SOHC Differences and Which Is Better? All software is included. Remanufactured Pump Assembly Inc.Teflon Pump Bushing, 10 Vane Rotor Assembly, Hardened Rings & All Updates. COMPUSHIFT Sport is delivered with versatile factory-set programming for a wide variety of transmission and engine combinations. Stage 2 4L60E/4L70E/4L75E (09-UP/17 Pin Connector) Z-Pack Hi Energy Clutch Set 3/4 with Kolene Steels. For a '94, yes your friend is right you need a non PWM(pulse width modulated) tranny. With the ECCC system, the pressure plate does not fully lock to the torque converter. JavaScript is disabled. During a 3-2 downshift, the duty is decreased and this duty is related to the vehicle speed; lower speed, lower duty. Starting in 1999, LS engines had a 4L65E, indicated by having a top bolt hole at the 12 o'clock position. The COMPUSHIFT Sport comes with an easy installation guide to make installing and configuring your 4L60E transmission controller a breeze. Similarly, the PCM also ramps down the LUF solenoid duty cycle to control TCC release. The 4L60E(has to be electronic) out of a '92,'93,'94 will work, as these trannies are non PWM trannies, with a on/off torque convertor. GM Genuine Parts 8680501 Automatic Transmission 2-4 Band Servo Pin The Pulse Width Modulation (PWM) torque converter clutch solenoid, which comes on all late models of the 4L60E, allows a smooth application and release of the torque converter clutch, and the adapted valve body which is controlled by electronic actuators and solenoid, makes the 4L60E easily controllable with a modern electronic transmission controller such as the COMPUSHIFT.