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


Loss of oil pressure due to worn components in critical oil circuits.


Zip Kit seals critical pressure losses. Drop-in parts install quickly and easily.

46RE, 46RH, 47RE, 47RH

Zip Kit®
Part No. 46-47RHE-ZIP

View Instructions Find a Distributor

Sonnax kit SC-46/47RHE has been discontinued and replaced by Sonnax Zip Kit 46-47RHE-ZIP.

Sonnax Zip Kit 46-47RHE-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in 46RE, 46RH, 47RE, 47RH valve bodies. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, converter and throttle circuits with no special tools required.

The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing and additional repair options for higher mileage units or for repairing specific complaints which are beyond the scope of this kit.

  • Drop-in Zip Valve parts install quickly and easily, no reaming or special tools required
  • Uniquely designed parts address root causes of valve body complaints by sealing critical pressure circuits
  • Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair
  • Additional unit-related components for comprehensive reconditioning
Learn More About Zip Valve™ Drop-In Repairs

Most components in this kit also will service 48RE units. Only the line pressure plug and sleeve kit and endplay shims are NOT compatible with the 48RE.

  • Line Pressure Plug & Sleeve Kit
  • 4-Spool Switch Valve
  • Manual Valve
  • Line-to-Lube Pressure Regulator Valve
  • Throttle Valve Kit
  • Boost Valve Spring Retainer
  • 3-4 Accumulator Spring
  • 4th Accumulator Piston Seals
  • Checkballs (10)
  • Turbine Shaft Seals (2)
  • Output Pilot Bushing
  • Intermediate Shaft Pilot & End Plug Kit
  • Endplay Shims (2)
  • E-Ring

  • 46RE, 46RH, 47RE, 47RH Zip Kit® 46-47RHE-ZIP


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

The Sonnax ZIP KIT®

The First Step in Correcting Common Shift Problems

It's easy to restore and extend vehicle shift quality with Zip Kits. Uniquely designed, drop-in Sonnax parts target the root cause of valve body complaints and stop critical circuit pressure losses in the most common problem areas of the transmission.

Learn More About Sonnax Zip Kits