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#2000 4L60E SERVO ASSEMBLY INSTALL#
#2000 4L60E SERVO ASSEMBLY UPGRADE#

This is usually due to a worn-out machine oil seal, which causes the fluid to leave the automatic transmission. One of the major faults for which the automatic transmission does not change gears is often the lack of fluid in the system. You must be sure that all vehicle systems function properly when you are unable to change gears. Operation of the unit, may occasionally operate incorrectly, inīut first of all, it is necessary to make sure that this malfunction is related to the work of the unit. What would cause a 4L60E transmission not to shift?Īutomatic transmission, while being quite sensitive to incorrect

How much does it cost to rebuild a 4L60E transmission?.

What would cause a 4L60E transmission not to shift?.

The "Corvette Servo" that OPT sells that I am reviewing here is NOT the "Superior 2nd Gear Super Servo" so I DID use "spring A". If you get the whole package like I did, the "SUPER SERVO" "4th Apply Piston & Cover" comes with it's own instructions that say to leave out "spring A" if "this servo is being used along with the "Superior 2nd Gear Super Servo". Here was my Q and the A for someone else's benefit. Sent the question in via the web, and didn't get an answer until the Tuesday after I installed the parts on Saturday. Only ding is that I called OPT for one question, and got sent to VM. Definitely a DIY with a little RTM and "YouTube Certification training". Love it!ĭid in an afternoon on a gravel driveway, BTW. I will likely do this to my son's 99 Silverado, and any other 4L6圎 vehicle I own going forward. 3-4 is noticeable now but again, not slammed.

Not measured yet, but am pretty sure I'll see in increase in MPG. At 25% throttle I 1-2 and 2-3 happens before 35 mph and keeps RPMs below 2000. Shifts are firm and confident but not slammed. NOW, after installing the Corvette Servo, AC Delco long servo pin, and the Shift Super Servo 4th Apply Piston and cover, the tranny is like new. 3-4 had always been soft & barely perceptible. 1-2 shift was delayed until 3500 RPM, and then 2-3 happened almost immediately.

GM, Cadillac, Chevrolet, GMC, Pontiac, Oldsmobile, Hummer, Isuzu, Saab, including: This servo works in all makes of this transmission. The kit comes with all of the necessary seals for installation including the outer cover o-ring. Any travel over 1/8” can create a situation of no overdrive. We are finding that when using the billet overdrive servo in conjunction with the corvette servo, this correct travel range is crucial. The long servo pin option on this item can help to get this travel within the correct range. Getting your servo within this travel range can make the shifts even quicker and add more miles and years to your transmission’s life. The recommended servo travel is 1/16”-1/8”.

#2000 4L60E SERVO ASSEMBLY INSTALL#

This servo is easy to install and can be done with the transmission in the vehicle.

Higher mile transmissions can also benefit and help to postpone a costly rebuild. Installing this servo in lower mileage vehicles can add years to your transmission’s life.

#2000 4L60E SERVO ASSEMBLY UPGRADE#

This servo will give your transmission 50% more apply pressure, just what you need to keep from burning your transmission up under heavy load situations.įor the price, the Corvette servo is the best upgrade you can make to your 700R4, 4L60E, 4L65E, or 4L70E automatic transmission. Right away you'll notice faster and firmer 1-2 shifts and even slightly better 2-3. This servo is a must for any performance, towing, RV, or off-road transmission, but would be a nice upgrade for any 700-R4 or 4L60E. New USA made Corvette servo piston kit for the GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E THM700-R4 MD8