1 Automatic Drive • P.O. Box 440 • Bellows Falls, VT 05101-0440 USA (800) 843-2600 • (802) 463-9722 • F: (802) 463-4059 • www.sonnax.com

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©2013 Sonnax Industries, Inc.

The Sonnax products listed here may be protected by one or more patents, or be patent pending.

Zip Kit® 6L45-6L90-ZIP

These Sonnax kits are also available, see www.sonnax.com for details.

6L80 LowerValve Body

6L80 Upper Valve Body

6L80 Pump Cover

GM

6L45, 6L50, 6L80, 6L90 10

10

6

99

9

1

2

7

8

8

8

104740-07KOversized TCC Regulator Valve Kit

Helps cure:• Codes 741/742• Excess TCC slip rate/harsh apply

Note: Requires tool kit F-104740-TL7 & the VB-FIX reaming fixture.

104520-11Oversized Converter Feed Limit ValveHelps cure:

• High TCC slip rate• Converter overheat

Note: Requires tool kit F-104520-TL11C, VB-FIX & the VB-06 reaming fixtures.

104520-01K Boost Valve KitHelps cure:

• Insufficient line rise in drive• Soft shifts

104520-03K Pressure Regulator Valve KitHelps cure:

• High/Low line pressure• Harsh/Soft shifts

104520-07KOversized Pressure Regulator & Boost Valve KitHelps cure:

• High/Low line pressure• Transmission overheating

Note: Requires tool kit F-104520-TL7, VB-FIX & the VB-06 reaming fixtures.

1 R

EQUIRED

TOOL

R

EQUIRED

TOOL

2 R

EQUIRED

TOOL

R

EQUIRED

TOOL

3

4

5 R

EQUIRED

TOOL

R

EQUIRED

TOOL

104740-09KCompensator Feed Regulator Valve KitHelps cure:

• Harsh shifts, CPC codes• Bump up/down shifts

104740-12Oversized AFL ValveHelps cure:

• Wrong gear starts• Solenoid codes

Note: Requires tool kit F-104740-TL12 & the VB-FIX reaming fixture.

104740-01 Fits Any of 3 Locations

Oversized Clutch Boost ValveHelps cure:

• Shift quality is not load sensitive

• Clutch pressure solenoid codesNote: Requires tool kit F-104740-TL & the VB-FIX reaming fixture.

104740-23K Includes 6 End Plugs

O-Ringed End Plug KitHelps cure:

• Shift Complaints• Burnt clutches

104740-02K Includes 2 Springs

Clutch Select Valve Spring KitHelps cure:

• P0751 Code• Cruise control disabled

104740-14KCenter Support Seal KitHelps cure:

• Burnt clutches• Loss of lube oil

6

7 R

EQUIRED

TOOL

R

EQUIRED

TOOL

8

R

EQUIRED

TOOL

R

EQUIRED

TOOL

9

10

11

35

4

Line Pressure Booster Kit 6L80-LB1

11This kit fits between the machined surface of the valve body and the case.