Sonnax highlights TH400 heavy and extreme duty input shafts  - Transmission Digest

Sonnax highlights TH400 heavy and extreme duty input shafts 

Input shaft failure is a common problem in GM TH400 transmissions running with added horsepower. Sonnax notes that it offers heavy and extreme duty input shafts compatible with heavy duty forward drum part no. 34554-01 and Smart-Tech drum module no. 34555-01K.

Part numbers include:

• Heavy Duty Input Shaft 30280-01

• Heavy Duty Input Shaft 30280-02

• Extreme duty Input Shaft 35280-02

• Extreme Duty Input Shaft 27280-02

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