4L60E 4L65E 4L70E Transmission Heavy Duty 2-3 Shift Valve Sonnax 77754-41

img{max-width:100%}SONNAX 4L60E 4L65E 4L70E HEAVY DUTY 2-3 SHIFT VALVEfor GM Applicationsincludes instructionsDescription: Sonnax has developed a drop-in replacement 2-3 shift valve that applies the overrun clutch in D3, 1st, 2nd and 3rd gears, where the factory valve applies the overrun clutch only in D3, 3rd gear.Applying the overrun clutch in 1st and 2nd provides added durability to the input sprag and forward clutch in heavy duty vehicles, plow trucks and high performance applications.This upgrade works well with applications using aftermarket electronic paddle shifters. With the overrun clutch on, this valve allows full downshift engine braking in 2nd, while the shifter remains in the D3 position.APPLICATIONS:Hummer(H2),(H2 SUT) 2004-07 V8 6.0LHummer(H3),(H3T) 2006-10 L5 3.7LHummer(H3),(H3T) 2008-10 V8 5.3LRainier 2004-07 L6 4.2L; V8 5.3LRainier 2006-07 V8 6.0LRoadmaster, Wagon 1994-96 V8 5.7LEscalade, ESV, EXT 1999-07 V8 5.3L 5.7L 6.0LFleetwood, Brougham 1991-96 V8 4.9L 5.7LLimo 1991-96 V8 4.9L 5.7LAstro Van, Safari 1995-07 V6 4.3LAvalanche 2001-09 V8 5.3LAvalanche 2008-09 V8 6.0LBlazer, Jimmy 1992-07 L4 2.2L; L6 4.2LBlazer, Jimmy 1992-07 V6 4.3L; V8 5.3LEnvoy, TrailBlazer 1992-09 L4 2.2L; L6 4.2LEnvoy, TrailBlazer 1992-09 V6 4.3L; V8 5.3LTrailBlazer 2006-09 V8 6.0LCamaro 1994-02 V6 3.4L 3.8LCamaro 1994-02 V8 5.7LCaprice, Wagon 1992-96 V6 4.3L; V8 5.0L 5.7LColorado, Canyon 2004-06 L4 2.8L; L5 3.5LColorado, Canyon 2007-11 L4 2.9L; L5 3.7LColorado, Canyon 2008-11 V8 5.3LCorvette 1992-05 V8 5.7L 6.0LExpress, Savana, 1500-2500 1996-11 V6 4.3LExpress, Savana, 1500-2500 1996-11 V8 4.8L 5.3L 5.7LImpala 1994-99 V8 5.7LS10,S15,Jimmy,Sonoma 1991-04 L4 2.2L 2.5L; V6 4.3LSilverado,Sierra,1500-3500 1995-10 V6 4.2L; V6 4.3LSilverado,Sierra,1500-3500 1995-10 V8 4.8L 5.0L 5.3LSilverado,Sierra,1500-3500 1995-07 V6 5.4L 5.7L 6.0LSilverado 1500SS 2004-06 V8 6.0LSierra Denali 2004-06 V8 6.0LSuburban 1500-2500 1992-08 V8 4.8L 5.0L 5.3L 5.7LSuburban 1500-2500 2008-09 V8 6.0LSSR 2003-07 L6 4.2L; V8 5.3L 6.0LTahoe, Yukon 1992-09 V8 4.8L 5.0L 5.3L 5.7LAscender 2003-09 L6 4.2L; V8 5.3L 5.4LHombre 1997-00 L4 2.2L; V6 4.3LI280 2006 L4 2.8LI290 2007-09 L4 2.9LI350 2006 L5 3.5LI370 2007-09 L5 3.5LBravada 1993-04 L6 4.2L; V6 4.3LFirebird 1994-02 V6 3.4L 3 8L; V8 5.7LGTO 2004 V8 5.7LGTO 2005-07 V8 6.0L9-7, 9-7X 2005-09 L6 4.2L; V8 5.3L9-7X 2009 V8 6.0LParts ship daily from our distribution center.FREE SHIPPING on US Orders   GOT QUESTIONS on your specific Year/Make/Model? Send us a messageVisit our eBay Store: Phoenix Transmission Partsfor all of your Automatic Transmission Part needsCheck out my other items!Be sure to add me to your favorites list!