Sonnax Line Pressure Booster Kit for 4L60-E, 4L65-E, 4L70-E
The 4L60E-LB1 Line Pressure Booster Kit is expertly designed to fit early-style GM 4L60-E, 4L65-E, and 4L70-E pumps. Sonnax has engineered this kit with robust pressure regulator springs and large ratio boost valves. These components synergize to deliver progressive pressure increases, adapting seamlessly as driving conditions intensify.
Our pressure regulator springs are crafted to be approximately 10% stronger than OE springs, offering a more measured impact compared to other aftermarket options. The large ratio boost valves are designed to incrementally elevate pressure, precisely when it is most needed. This Sonnax kit harmoniously combines these springs and valves, yielding a subtle pressure boost at the low end and a high-end pressure that meets or exceeds other aftermarket kit springs.
Key Benefits:
- Achieve crisper shifts and augmented torque capacity, without inducing low-speed harshness
- Enhanced band and clutch holding capacity for superior transmission durability
- Gradual pressure escalation as driving demands increase
- Reap the rewards of elevated line pressure, without straining the pump at idle
- Effortless installation with drop-in Zip Valve™ components
Note:
Replaces early-style boost valve with "long" 1.907" sleeve. For applications requiring a "short" 1.810" sleeve, use 4L60E-LB2. Refer to instructions for additional application details.
Kit Contents:
- Pressure Regulator Spring
- O-Rings (2)
- Large Ratio Boost Assembly
Transmissions: 4L60E (M33,M30) 1993-UP, 4L65E (M32) 1993-UP, 4L70E (M70) 2004-UP
Vehicle
AM GENERALH3/H3T/H3? HUMMER 2006-2011 4 SP 4WD L5 3.7L V6 3.9L V8 5.3L
H2/H2 SUT HUMMER 2002-2007 4 SP 4WD V8 6.0L
BUICKRAINIER 2003-2007 4 SP R/4WD L6 4.2L V8 5.3L
ROADMASTER SEDAN, ROADMASTER WAGON 1995-1996 4 SP RWD V8 5.7L
CADILLACESCALADE/ESV/EXT 1999-2006 4 SP R/4WD V8 5.3L 5.7L 6.0L
FLEETWOOD, BROUGHAM, LIMO 1995-1996 4 SP RWD V8 5.7L
CHEVROLETASTRO, BLAZER, CORVETTE, SONOMA, S/T PICK-UP, SAFARI, CORVETTE 1995-2005 4 SP R/4WD V6 4.3L
AVALANCHE 2001-2008 4 SP R/4WD V8 5.3L 8.1L
C/K, PICK-UP 1500, C/K, PICK-UP 2500, C/K, PICK-UP 3500(95) 1995-1997 4 SP R/4WD V6 4.3L V8 4.8L 5.0L 5.3L 5.7L 6.0L
C-1500 2001-2015 4 SP 4WD V8 5.3L
CAMARO 1995-2002 4 SP RWD V6 3.4L 3.8L V8 5.7L
CANYON 2003-2013 4 SP R/4WD L4 2.8L 2.9L V6 3.5L L5 3.7L V8 5.3L
CAPRICE SEDAN, CAPRICE WAGON, IMPALA 1995-1996 4 SP RWD V8 4.3L 5.7L
COLORADO 2003-2012 4 SP R/4WD L4 2.8L 2.9L L5 3.5L 3.7L V6 3.6L V8 5.3L
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
SILVERADO 1998-2013 4 SP R/4WD V6 4.3L V8 4.8L 5.3L V8 6.0L
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
SSR 2003-2006 4 SP RWD V8 5.3L 6.0L
AVALANCHE 2006-2008 4 SP R/4WD V8 6.0L
FIATBRAVO 2007-2014 6 SP FWD L4 1.4L 1.6L
GMCSAVANA 1997-2016 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
YUKON , YUKON XL 2000-2011 4 SP R/4WD V8 4.8L 5.3L 6.0L
SIERRA 1500 1998-2013 4 SP R/4WD V6 4.3L V8 4.8L 5.3L V8 6.0L
HOLDENADVENTRA 2004-2007 4 SP 4WD V8 5.7L
COMMODORE 2000-2011 4 SP RWD V6 3.6L 3.8L V8 5.7L
MONARO 2001-2006 4 SP RWD V8 5.7L
ISUZUASCENDER 2003-2008 4 SP R/4WD L6 4.2L V8 5.3L
HOMBRE 1997-2000 4 SP RWD L4 2.2L V6 4.3L
I SERIES (290, 370) 2006-2008 4 SP R/4WD L4 2.8L 2.9L L5 3.5L 3.7L
OLDSMOBILEBRAVADA 1995-2004 4 SP R/4WD V6 4.2L 4.3L
PONTIACFIREBIRD 1995-2002 4 SP R/4WD V6 3.8L V8 5.7L
GTO 2004-2006 4 SP RWD V8 5.7L 6.0L
SAAB9'7X 2005-2009 4 SP R/4WD V6 4.2L V8 5.3L
SUZUKIVitara 2000-2004 4 SPD RWD,4WD
Alternate Words: Automatic Transmission, Reprogramming, Improvement , Correction, Shift , Valve Body Rebuild Kit