Zip Kit® Video - The First Step in Correcting Common Shift Problems

Presented by Sonnax

It’s easy to restore and extend vehicle shift quality with Zip Kits. Uniquely designed parts target the root cause of valve body complaints and stop critical circuit pressure losses in the most common problem areas of the transmission. No reaming or special tools required to install simple, effective parts. Each kit comes with an in-depth tech booklet for installation, testing and diagnostics.

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Related Parts

Required

Recommended

4R44E, 4R55E, 5R44E, 5R55E

Zip Kit® 4R44E-5R55E-ZIP

Helps cure:

• Gear ratio & solenoid codes
• Low line rise
• Soft shifts
• Erratic shifts
• No 3rd when hot
• No 4th when hot
• 2nd Gear starts
• Delayed Forward
• TCC apply concerns

Required

Recommended

A340E, A340F

Zip Kit® A340-LATE-ZIP

Fits '00-later V6 and V8 units, type 3 & 4.

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

U140E, U140F, U240E, U241E

Zip Kit® U140E-U241E-ZIP

Helps cure:

• Burnt clutches
• Low line rise
• Soft shifts
• Slips & flares
• Delayed engagement
• TCC apply & release concerns
• TCC codes

Required

Recommended

U151E, U151F, U250E

Zip Kit® U151E-U250E-ZIP

Helps cure:

• Burnt converter
• Burnt clutches
• Low line rise
• Soft shifts
• Harsh shifts
• Slips, flares & bind-ups
• Delayed Forward
• TCC apply & release concerns
• TCC codes

Required

Recommended

6R60, 6R75, 6R80 (2009–2014), ZF6HP19, ZF6HP26, ZF6HP32

Zip Kit® ZF6-6R60-ZIP

Fits Gen. 1 ZF6 without 053 separator plate, plus 6R60, 6R75 and ’09–’14 6R80.

Helps cure:

• Harsh engagement
• Broken parts due to excessive line pressure
• Excess heat
• Firm shifts
• Flare shifts & bind-ups
• Delayed engagement

Required

Recommended

ZF6HP21, ZF6HP28, ZF6HP34

Zip Kit® ZF6-GEN2-ZIP

Helps cure:

• Broken parts due to excessive line pressure
• Excess heat
• Firm shifts
• Flare shifts & bind-ups
• Delayed engagement
• Harsh engagement

Required

Recommended

A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F

Zip Kit® A750E-A761E-ZIP

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

U660E, U660F

Zip Kit® U660E-ZIP

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

6L45, 6L50, 6L80, 6L90

Zip Kit® 6L45-6L90-ZIP

Helps cure:

• Burnt clutches
• Delayed engagement
• 3-4 Bump
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

55-50SN, 55-51SN

Zip Kit® AW55-50SN-ZIP

Also fits AF 23/33 and RE5F22A units.

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

6F35 (Gen. 1), 6F35 (Gen. 2), 6F35 (Gen. 3)

Zip Kit® 6F35-ZIP

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

6F50, 6F55

Zip Kit® 6F50-ZIP

Helps cure:

• Burnt clutches
• Line pressure instability
• Loss of fuel economy
• No line rise
• Pressure loss
• Shift concerns
• TCC apply & release concerns
• TCC codes

Required

Recommended

6T70 (Gen. 1), 6T75 (Gen. 1)

Zip Kit® 6T70-ZIP

Helps cure:

• Burnt clutches
• Line pressure instability
• Loss of fuel economy
• No line rise
• Pressure loss
• Shift concerns
• TCC apply & release concerns
• TCC codes
• Pressure switch codes

Required

Recommended

6T30 (Gen. 1), 6T40 (Gen. 1), 6T45 (Gen. 1), 6T50 (Gen. 1)

Zip Kit® 6T40-ZIP

Helps cure:

• Burnt clutches
• Line pressure instability
• Loss of fuel economy
• No line rise
• Pressure loss
• Pressure switch codes
• Shift concerns
• TCC apply & release concerns
• TCC codes

Required

Recommended

U760E, U760F

Zip Kit® U760E-ZIP

Helps cure:

• Burnt clutches
• Delayed engagement
• Inadequate lubrication
• Loss of fuel economy
• Low pressure
• Slips & flares
• Soft shifts
• TCC apply & release concerns
• TCC codes

Required

Recommended

6R140

Zip Kit® 6R140-ZIP

Helps cure:

• Delayed engagement
• Excess heat
• Flare shifts & bind-ups
• Harsh engagement
• Harsh shifts
• Slipping gears
• TCC apply & release concerns
• Soft shifts

Required

Recommended

ZF6HP19, ZF6HP26, ZF6HP32

Zip Kit® ZF6-053-ZIP

Fits Gen. 1 ZF6 with 053 separator plate.

Helps cure:

• Broken parts due to excessive line pressure
• Delayed engagement
• Excess heat
• Firm shifts
• Flare shifts & bind-ups
• Harsh engagement

Required

Recommended

4R100, E4OD

Zip Kit® E4OD-4R100-ZIP

Helps cure:

• Burnt Low/Reverse clutch
• Code 62, 628, 1744
• Delayed engagement
• High line pressure
• Lockup shudder
• Loss of gear
• No engine braking
• OD planetary failure
• Overheated converter
• Premature clutch failure
• Soft shifts
• TCC cycling

Required

Recommended

46RE, 46RH, 47RE, 47RH

Zip Kit® 46-47RHE-ZIP

Helps cure:

• 2-3 Late
• 2-3 Oversensitive
• Build up of release pressure during lockup

Required

Recommended

4R70E, 4R70W, 4R75E, 4R75W, AODE

Zip Kit® AODE-4R75E-ZIP

For AODE, fits '96-later only

Helps cure:

• 4-3 Neutral
• Code 628
• Delayed lockup
• Forward clutch failure
• Intermediate roller clutch failure
• Low line rise
• Low Reverse boost
• Mechanical diode failure
• No 4th
• OD band failure
• Poor shift quality
• Soft shifts
• TCC apply & release concerns

Required

Recommended

6T30 (Gen. 2), 6T31 (Gen. 3 6T40), 6T35 (Gen. 3 6T40), 6T40 (Gen. 2), 6T41 (Gen. 3 6T40), 6T45 (Gen. 2), 6T46 (Gen. 3 6T40), 6T50 (Gen. 2), 6T51 (Gen. 3 6T40)

Zip Kit® 6T40-GEN2-3-ZIP

Helps cure:

• Burnt clutches
• Line pressure instability
• Loss of fuel economy
• No line rise
• Pressure loss
• Shift concerns
• TCC apply & release concerns
• TCC codes

Required

Recommended

845RE, ZF8HP45, ZF8HP55, ZF8HP70

Zip Kit® ZF8-ZIP

Helps cure:

• Broken parts
• Delayed engagement
• Excess heat
• Firm shifts
• Harsh engagement

Required

Recommended

6T70 (Gen. 2), 6T75 (Gen. 2), 6T80 (Gen. 2)

Zip Kit® 6T70-G2-ZIP

Helps cure:

• Burnt clutches
• Line pressure instability
• Loss of fuel economy
• No line rise
• Pressure loss
• Shift concerns
• TCC apply & release concerns
• TCC codes

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.