TransGo Steel Plug Solution for 4L60E, 4L65E, 4L70E Transmissions (1993-2015)
Vehicles from 1993 and newer equipped with General Motors 4L60E, 4L65E, and 4L70E automatic transmissions often experience 3-4 clutch failure. A frequently overlooked cause of this issue is leakage at the reverse abuse plug in the valve body. This plug serves as both a separator and a seal between the 3-2 downshift valve and the reverse abuse valve.
In third gear, the 3-4 clutch oil travels between the 3-2 downshift valve and the plug, moving the valve towards the spring. The plug, subject to constant spring force on one side and alternating 3-4 clutch oil pressure on the other, tends to move slightly in its bore with each clutch oil cycle. Initially held in place by a roll pin, the factory aluminum bore plug gradually wears out, allowing more 3-4 clutch oil to leak into the sump. This leakage, occurring downstream of an orifice feeding the 3-4 clutch, can lead to a 2-3 shift flare or overlap, ultimately damaging the 3-4 clutch.
Features of the TransGo Steel Plug:
- Our TransGo drop-in steel plug is longer and has a slightly larger O.D. than the OE plug, effectively preventing leakage.
- Constructed from harder material with a greater interference fit to ensure stability.
- Designed with a threaded hole for easy installation, accompanied by a long bolt.
- Includes enough parts to repair five units, offering a reliable solution to plug leakage.
Benefits of the Steel Plug:
- Prevents the burning of the 3-4 clutch.
- Reduces flare during the 2-3 upshift.
- Minimizes the risk of burning the 2-4 band.
Kit Contents:
- Five precision USA-made steel plugs.
- Threaded bolt for installation.
Transmissions: 4L65E (M32) 1993-2015, 4L60E (M33,M30) 1993-2015, 4L70E (M70) 1993-2015
Vehicle
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ENVOY, TRAILBLAZER 1999-2009 4 SP R/4WD V6 4.2L V8 5.3L
EXPRESS 1997-2016 4 SP R/4WD V6 4.3L V8 5.3L
SUBURBAN 1500 1995-2008 4 SP R/4WD V8 4.8L 5.0L 5.3L 5.7L V8 6.0L
TAHOE 1995-2013 4 SP R/4WD V8 4.8L 5.3L 5.7L
VAN FULL SIZE 1500-2500 1995-2011 4 SP RWD V6 4.3L V8 4.8L 5.0L 5.3L 5.7L 6.5L DIESEL
VAN FULL SIZE 3500 1995-1999 4 SP RWD V6 4.3L
GMCSIERRA 1500 1998-2013 4 SP R/4WD V6 4.3L V8 4.8L 5.3L V8 6.0L
YUKON , YUKON XL 2000-2011 4 SP R/4WD V8 4.8L 5.3L 6.0L
SAVANA 1997-2015 4 SP R/4WD V6 4.3L V8 4.8L 5.3L
SIERRA 1500 1998-2013 4 SP R/4WD V6 4.3L V8 4.8L 5.3L V8 6.0L
Alternate Words: Automatic Transmission, Reprogramming, Improvement , Correction, Shift , Valve Body Rebuild Kit, 4L60EABUSE-BP, 4L60E-ABUSEBP, 4L60EABUSEBP