I tell customers that drive like that "You need a 4L80E Or you need learn that 4L60E's have a "duty cycle" & drive them accordingly. Then repeat this over & over, The Clutch Pack cannot cool down! From the factory, the 700R4 and 4L60E transmissions were equipped with 4 different servo sizes based on application. I'm sure you have seen the guys that get up in high gear, Then Stomp on it.Forcing a 4-2 downshift & let it up shift at WOT into 3rd & 4th. The TransGo 7-2P Corvette servo piston assembly fits 1982 to 2015 General Motors vehicles equipped with 700R4, 4L60/E, 4L65E and 4L70E automatic transmissions. The 3-4's can only handle so many repetitious on/off cycles before they get REALLY hot. On good/low mileage units that burn down 3-4's for no "apparent" reason is generally caused by the Human driving it. DESCRIPTION: HARD PART - TH700-R4, 4L60E, PISTON, SERVO (CORVETTE) GENERAL MOTORS 82-ON OEM 8642079OEM NUMBER: 8642079MAKE: GENERAL MOTORSTRANSMISSION. Of course a leak in the 3-4 apply circuit will cause it to. Corvette servo or a larger Sonnax 2nd Gear super hold servo would. We are trying to put a 4L60E trans in it, but the torque converter flange is Hooker. For years we have known the 4L60 and 4L60-E 2nd Gear servo came in three different. The 3-4 Clutches burning down is the next common failure, On high mileage units.The hydraulic integrity (Poor line pressure rise)of the unit degrades over time & the 3-4's are the first thing to go. vette wanted more power for his daily driver. Sonnax has a "Smart Shell" that 100% fixes this issue. My theory on the Sun Shell is, At first GM made them to hard, And flexing at the Splines would fatigue the metal, Then they Updated it to softer steel.Then the Splines would strip clean off. IF YOU DO NOT SEE WHAT YOU NEED IN OUR EBAY STORE PLEASE MESSAGE US AND WE WILL LIST IT FOR YOU ON EBAY FOR IMMEDIATE PURCHASE.I build them for a living & don't have a full explanation, I have seen some go 300K plus, Some go 50K and die. ORDERS ARE SHIPPED OUT SAME DAY IF ORDERED BEFORE 4:30PM EASTERN STANDARD TIME! WE ARE A TRANSMISSION ONE STOP TRANSMISSION AND TRANSMISSION PARTS STORE.
Tranny), and some brake cleaner to clean everything before. The tools needed are a big and small flathead screwdriver to remove the servo cover and E-ring, a C-clamp to compress the servo to swap out the old spring into the new servo, and some transmission assembly lube (I used blue Dr. ACDelco GM Original Equipment 24232073 Automatic Transmission 2-4 Band Servo 2nd Apply Piston Fluid Seal Kit. This is a very easy upgrade to the 4L60E transmission, which has a bit of a sloppy shift from the OEM servo. Get special offers, deals, discounts & fast delivery options on international. Corvette Servo Upgrade Kit Transgo Camaro Z28 A74905BK TH700R4 4L60E 4L65E For 1982-On Corvette Style-Ideal for high-performance applications and is fully compatible with valve body kits. DESCRIPTION: HARD PART – TH700-R4, 4L60E, PISTON, SERVO (CORVETTE) GENERAL MOTORS 82-ON OEM# 8642079 Shop for 700R4 4L60E Corvette Servo online at an affordable price in Chad.
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