4L60E 4L65E 4L70E, 77754-41 Transmission Shift Valve, Heavy Duty 2-3 Trans Shift Valve Black

For greatly improved input sprag and Forward clutch durability, Sonnax heavy duty 2-3 shift valve 77754-41 for 4L60-E, 4L65-E, and 4L70-E units will apply the overrun clutch in D3 1st, 2nd, and 3rd Gears.
for GM 4L60-E family of transmissions evolved from the 700-R4, the overrun clutch is no longer applied in 1st and 2nd when accelerating from a stop in the D3 shifter position. This change was made to improve coast-down drivability in D3 but had the side effect of reducing the torque capacity of the input section.
Equal performance and durability according to OEM standards. The trans shift valve does not require tuning, it can be replaced directly.
4l60e 2-3 shift valve transmission are all accessories are included, no additional accessories are required.
For Hummer(H2),(H2 SUT) 2004-07 V8 6.0L, For Hummer(H3),(H3T) 2006-10 L5 3.7L, For Hummer(H3),(H3T) 2008-10 V8 5.3L

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