TH700R4 through 4L70E tips and tricks
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The key to longevity in any automatic transmission is to keep the fluid cool; therefore installing an external bypass cooler is recommended. The Factory Transmission coolers are an integral part of the radiator and will only cool the fluid in accordance with the engine temperature. transmission fluid life decreases as temperatures rise above 160(f) an external transmission cooler will help to prevent trans fluid breakdown and Torque converter " Ballooning" or expansion which will cause the (catastrophic) pump bushing failure. Use the largest external cooler that will fit and not block radiator airflow. | The key to longevity in any automatic transmission is to keep the fluid cool; therefore installing an external bypass cooler is recommended. The Factory Transmission coolers are an integral part of the radiator and will only cool the fluid in accordance with the engine temperature. transmission fluid life decreases as temperatures rise above 160(f) an external transmission cooler will help to prevent trans fluid breakdown and Torque converter " Ballooning" or expansion which will cause the (catastrophic) pump bushing failure. Use the largest external cooler that will fit and not block radiator airflow. | ||
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| + | ===2nd gear Servo=== | ||
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| + | Photo of typical 700r4 / 4L60 series servos. | ||
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| + | *On left is Corvette size servo. OEM and various aftermarket parts sources for this servo. | ||
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| + | *In middle is a rare servo size from SSR truck and TrailBlazer SS, not a common size to find. Number on inide of the bottom section will end with 159 | ||
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| + | *On the right is common V8 sized servo, also used in 4.3 V6 applications. Numbers on inside of the bottom section will end with 553 | ||
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| + | [[file:700r4_servos.jpg]] | ||
== Pump modifications == | == Pump modifications == | ||
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