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Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters Smart-Tech Input Housing Kit with Heavy Duty Input Shaft - 298mm 77733-10KB

Name: Suncoast Converters Smart-Tech Input Housing Kit with Heavy Duty Input Shaft - 298mm 77733-10KB
Brand: Sun Coast Converters
SKU: S02K 77733-10KB

$2,338.14

SKU: S02K 77733-10KB

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Overview

The Sonnax Smart-Tech input housing kit 77733-10KB is designed to address 3-4 clutch burnup in performance applications for GM 4L60 series transmissions. It eliminates the flexing of the weak OE backing plate by providing a stronger backing plate and increasing clutch capacity. The kit utilizes new GM housings with improved input shaft splines and added material for increased durability. The heavy-duty input shaft is made from 300M ultrahigh-strength steel and features a revised turbine end spline to prevent breakage.

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Suncoast Converters Smart-Tech Input Housing Kit with Heavy Duty Input Shaft - 298mm 77733-10KB

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Sun Coast Converters
Part Number	S02K 77733-10KB

Videos

Sonnax 4L60/E Smart-Tech® Input Housing

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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