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Valves/Boost Valves
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4L80E boost valve and sleeve kit with o-rings 3420001K 4L80E VALVE KIT, BOOST W/ORINGS

This kit includes 1 boost valve, 1 boost sleeve, 2 O-rings and 1 balance plug with o-ring. Restores line pressure boost.
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Competitors Price $25.26
Your Cost $25.26
34200-03K 4L80E OEM style boost valve 3420003K 4L80E VALVE KIT, BOOST W/O ORINGS

Restores line pressure boost and prevents the buzzing noise.
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Competitors Price $25.52
Your Cost $25.52
4L80E Manual Shift Shaft Kit 3851103K 4L80E ('91-'94) SHORT VERSION SHAFT KIT, MANUAL SHIFT

4L80E Manual Shift Shaft Kit

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Competitors Price $32.46
Your Cost $32.46
4L80E, 4L85E Manual Shift Shaft Kit 3851104K 4L80E('95 - LATER)LONG VERSION SHAFT KIT, MANUAL SHIFT

4L80E, 4L85E Manual Shift Shaft Kit

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Competitors Price $44.42
Your Cost $44.42
3488001 Output Speed Sensor Reductor Ring for 4L80E & 4L85E 3488001 Output Speed Sensor Reductor Ring for 4L80E & 4L85E

LIMITED STOCK - - - Part no longer available. More Information

Competitors Price $53.90
Your Cost $48.00
4L80E line to lube pressure regulator valve kit 3420014K GM 4L80E VALVE KIT, PR LINE TO LUBE

This valve allows regulated flow to the torque converter charge and lube circuit at idle, while preventing TC drain back and loss if pump prime.
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Competitors Price $90.46
Your Cost $90.46
4L80E self regulating boost valve kit 3420010K 4L80E VALVE KIT, BOOST W/ORINGS

Prevents damage caused by excessive line pressure.
This is a direct replacement part, no machining required.
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Competitors Price $95.20
Your Cost $95.20