#700R4 CORVETTE SERVO IN USED TRANS INSTALL#
#700R4 CORVETTE SERVO IN USED TRANS UPGRADE#

Sonnax Has Now Developed A Unique Solution That Combines An Orifice With A Ball Check Valve And Solves These Problems. The 3-4 Clutch And 2nd Gear Band Are Not Properly Synchronized. Inadequate Metering Of 2nd Gear Band Servo Release Oil Causes 3-4 Clutch Failure. Since The 700-R4 Transmission Was First Introduced. They Have Been Trying, With Limited Success, Technicians Would Like To Find A Way To Successfully Extend The Life Of 3-4 Clutches, And Improve The 2-3 Shift Feel. This Part Combines An Orifice With A Ball Check Valve To Meter Servo Release Oil. Inadequate Metering Of The 2nd Band Servo Release Oil. Note: This 'Check Valve Must Be Used With The OEM Valve And Some Drilling May Be Needed. GMC Chevy Buick Cadillac Pontiac Oldsmobile This Check Valve Will Fit These Automatic Transmissions (1) One Sonnax 77701-076 Check Valve Kit Only

Southeast Worldwide Manufacturers - SEAР”В§00 700R4 4L60 4L60E 4L65E 4L70E New Sonnax 77701-076 Servo Release 'Check Valve'.

LUBEGARDР’В® International Lubricants, Inc.

TransTec, OEM, Exedy, Borg-Warner or Raybestos.

ATSG Automatic Transmission Service Group.

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!Р”Вid in an afternoon on a gravel driveway, BTW. I will likely do this to my son's 99 Silverado, and any other 4L6РµСљР‹ 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 1/8РІР‚Сњ 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 transmissionРІР‚в„ўs life. The recommended servo travel is 1/16РІР‚Сњ-1/8РІР‚Сњ.

#700R4 CORVETTE SERVO IN USED TRANS 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 transmissionРІР‚в„ўs life.

#700R4 CORVETTE SERVO IN USED TRANS 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.Р”Р‡or 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

700r4 corvette servo in used trans