* Zip Kit(s) for 8L90 and 8L45 Transmissions. 8L45-8L90-SHIFT-ZIP and 8L45-8L90-TCC-ZIP. Choose one, or both!

$ 244.00

Add 8L45-8L90-TCC-ZIP ? *

Torque Converter ZIP KIT

SKU: SX 8L45-8L90-SHIFT-ZIP and 8L45-8L90-TCC-ZIP, a8 rb b5 Categories: , Tags: , ,


Two New Zip Kits for 8L90 and 8L45 Transmissions.

Tackle the root cause of multiple shift-related and converter-related complaints by sealing the critical circuit pressure losses in listed valve bodies with these two new Zip Kits.

Choose which kit fits your specific needs, or install both kits together for a complete valve body update without duplicating components.

Drop-in Zip Valve parts install quickly and easily with no reaming or special tools required!

Part No. 8L45-8L90-SHIFT-ZIP


  • Poor shift quality
  • Burnt clutches
  • Flare shifts
  • Soft shifts
  • Clutch slippage
  • Low line pressure
  • Ratio codes

Part No. 8L45-8L90-SHIFT-ZIP

Part No. 8L45-8L90-TCC-ZIP


  • TCC apply & release concerns
  • Overheated transmission & converter
  • Loss of cooler flow
  • Loss of lube oil
  • Burnt converter
  • High TCC slip RPM
  • Code P0218
  • Code P0741


Additional information

Weight 1.5 lbs
Dimensions 8 × 8 × 3 in