DTT Billet 2nd Gear Servo
1991-2007 Dodge 5.9L Cummins
TRANSMISSIONS LIVE AND DIE BY PRESSURE !
The main purpose of the DTT BILLET SERVO SYSTEM is to stop leakage in the 2nd gear and 3rd gear system. Eventually all transmissions will develop a certain amount of leakage. This can be caused by oil condition, mileage and especially the metal sealing rings used in many aftermarket systems and OEM that cause case wear in the bore.
Of the hundreds of OEM and aftermarket transmissions DTT tested, leakage was evident and did vary above Chrysler specifications. Most of the actual leakage DTT found was caused by worn cases and worn servo covers.
How the system works is that when the 2nd gear servo applies your band, the centre of the OEM factory servo cover gets worn down creating leakage. As the leakage increases your 3rd gear holding capacity will decrease. It is not a question of does your cover leak; it’s a question of how much does it leak.
The DTT SERVO Cover utilizes a bushing and a lip seal preventing any leakage through the servo cover.
This innovative DTT SERVO design is unique as it utilizes custom lap jointed Teflon designed sealing rings that seals up the bore as the unit heats up, resulting in maximum sealing capacity resulting in increased longevity.
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