5R55N, 5R55S, 5R55W

Symptoms:

• Soft shifts
• Poor shift quality
• Delayed engagement
• Low base line pressure
• High line pressure

Cause:
Circuit wear, relaxed OEM pressure regulator springs or overly aggressive aftermarket springs.

Correction:
The Sonnax spring is designed to restore or increase line pressure up to 10 psi over OEM specifications while avoiding excessively high line pressure and harsh shifts.

• Restores or increases line pressure up to 10 psi.
• Replaces lost original springs.
• No harsh shift effects of high line pressure.
• Drop-in installation requires no modifications.