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Sonnax Zip Kits

4.82 out of 5 stars 11 Customer Reviews

Sonnax Zip kits are engineered to cure common problems associated with today's automatic transmissions.

Sonnax Zip kits eliminate:

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

Showing In Stock Items. Show All 1 Items.

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Sonnax Zip Kits 8L45-8L90-TCC-ZIP

Automatic Transmission Shift Kits, TCC Zip Kit, with O-Ring End Plugs, Converter Limit Valve, Regulator/Shuttle, Cadillac, Chevy, GMC, 8L45, 8L90, Kit

Part Number: SOX-8L458L90TCCZ

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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