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Symptoms:

  • Oil leaks

Cause:

Tapered threads of OE fittings crack case when overtightened.

Correction:

The Sonnax adapter allows the case to be salvaged without removal.

42RE, 42RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904

Cooler Line Repair Kit
Part No. 22000-01K

For cases with 1/4" pipe fittings only

View Instructions

A common complaint in late-model Chrysler rear-wheel-drive units is a cracked and/or leaking case caused by installing the cooler lines. The tapered threads and the lack of a stop on the OE cooler line fitting can load the case and create a fracture, resulting in leakage that may require replacing the case. The Sonnax adapter seals on the leading edge, preventing fluid from reaching the fitting threads and crack. The fitting has straight, not tapered threads to prevent the crack from spreading.

  • Allows case salvage without transmission removal.
  • Includes special tap for case threads.
  • Cooler Line Adapters (5)
  • Tap

September 30, 2005

Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits

Gregg Nader

Topics: Diagnostics And Theory Transmission

Read Now
  • 22000 01k combo
  • 22000 01k

Instructions