4L60E
4L65E
4L70E
'93+ 4-SPEED AUTOMATIC TRANSMISSIONS:
LINE PRESSURE BOOSTER KIT
- LONG STYLE: 1.907" (4.8438cm)
- SONNAX 4L60E-LB1
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Achieve shorter shifts and increased torque capacity without creating low-speed harshness.
- Improved band and clutch holding capacity for increased durability
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Progressive pressure increase as driving conditions become more demanding
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All the benefits of increased line pressure without overloading the pump at idle
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Simple and affordable drop-in solution with no special tools or reaming required
- Line pressure booster kit 4L60E-LB1 fits early-style GM 4L60-E, 4L65-E and 4L70-E pumps. Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding.
- Our pressure regulator springs are approximately 10% stronger than OE and more conservative in impact than other aftermarket kit springs. Large ratio boost valves provide higher pressure incrementally and when it is needed the most. The combination of these springs and valves in a Sonnax kit gives you the best of both worlds: a modest pressure increase at the low end, with a high-end pressure that is equal to or greater than that of other aftermarket kit springs.
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NOTE: Fits early-style pump with long 1.907" sleeve only. Use 4L60E-LB2 for later pumps with short, 1.810" sleeve
- ALUMINUM CONSTRUCTION
- INSTALLATION INSTRUCTIONS INCLUDED
- PHOTO SHOWS ACTUAL LINE PRESSURE BOOSTER KIT
- MADE IN THE USA
- SONNAX 4L60E-LB1
- FREE SHIPPING TO ALL 50 U.S. STATES & PUERTO RICO!
- WE SHIP WORLD WIDE
