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Sonnax 77733-06K

Smart-Tech Input Housing Kit

Sonnax 77733-06K

852-77733-06K

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Estimated ship date 10/03/17 if Ordered Today
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Sonnax 77733-06K Smart-Tech Input Housing Kit $486.75
Smart-Tech Input Housing Kit

Sonnax 77733-06K Details

Smart-Tech Input Housing Kits

  • PTFE Impregnated Rear Stator Support Bushing
  • Modified Input Housing
  • Input Drum Reinforcement Sleeve
  • Overrun Piston Inner Seal
  • Overrun Piston
  • 3-4 Clutch Apply Plate
  • 3-4 Clutch Return Springs (10)
  • Bolt-on Anchor Plate
  • Overrun Piston Outer Seal
  • Socket Head Cap Screws (15)

The Sonnax Smart-Tech input housing kit 77733-06K addresses five weak areas of the GM 4L60, 4L60-E, 4L65-E, 4L70-E input housing: (1) flexing/bowing of the 3-4 backing plate, (2) limited 3-4 clutch torque capacity, (3) 3-4 snap-ring blow-out, (4) input housing breakage near the input shaft spline, and (5) input housing fatigue failure.

Flexing/bowing of OE and other aftermarket backing plates is eliminated with Sonnax's heavy duty bolt-on anchoring plate. This unique design ensures even clamping of the 3-4 clutches in higher horsepower, higher pressure applications. By eliminating the 3-4 snap ring and using a thinner yet stiffer apply plate, space is made available for additional frictions and steels. This makes it possible to simultaneously increase clutch torque capacity and eliminate the possibility of retaining ring blow-out. A steel reinforcement sleeve prevents breakage in the spline area. Housing fatigue failure resistance and housing life are significantly improved with a special treatment process that greatly reduces stress crack formation.

  • Zero-flex, bolt-on bolt-on anchor plate eliminates uneven clamping pressure, resulting in increased clutch durability
  • Increased 3-4 clutch torque capacity will accept either:
    • Eight .067" frictions with seven .095" steels
    • Nine .062" frictions with eight .077" steels
  • Eliminates snap-ring blow-out
  • Treated housing is significantly more resistant to fatigue failure
  • Includes steel reinforcement sleeve and overrun piston

Specifications:

Manufacturer's Part Number:
77733-06K

Sonnax Smart-Tech Input Housing Kits address the weak areas of the GM 4L60, 4L60-E, 4L65-E, 4L70-E input housing: (1) flexing/bowing of the 3-4 backing plate, (2) limited 3-4 clutch torque capacity, (3) 3-4 snap-ring blow-out, (4) input housing breakage near the input shaft spline, and (5) input housing fatigue failure.

Flexing/bowing of OE and other aftermarket backing plates is eliminated with Sonnax's heavy duty bolt-on anchoring plate. This unique design ensures even clamping of the 3-4 clutches in higher horsepower, higher pressure applications. By eliminating the 3-4 snap ring and using a thinner yet stiffer apply plate, space is made available for additional frictions and steels. This makes it possible to simultaneously increase clutch torque capacity and eliminate the possibility of retaining ring blow-out. A steel reinforcement sleeve prevents breakage in the spline area. Housing fatigue failure resistance and housing life are significantly improved with a special treatment process that greatly reduces stress crack formation.

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