Phoenix Transmission Parts, Inc. is an authorized Sonnax Distributor.
Phoenix Transmission Parts offers this one-piece Sonnax Heavy Duty Input Shaft and Clutch Hub for hard working Chrysler A618, 47RE, 47RH and 48RE transmission applications.
The unique one-piece design of the Input Shaft and Clutch Hub provides a stronger, more durable connection by removing the weak point between the Input Shaft splines and the Clutch Hub. The OE two-piece shaft/hub design often fails where the shaft and the clutch hub meet. After time, heat, and pressure, the shaft splines strip. The stripped input shaft splines won't turn inside the clutch hub and the input to the vehicle stops. The innovative Sonnax design joins the Input Shaft and the Clutch Hub as one piece, so the there are no splines to strip. This leads to greater capacity and longer transmission life.
In addition to eliminating a weak point, Sonnax manufactures the Input Shaft with "Ultra High-Strength" steel. A proprietary forging process creates spots or blemishes on the shaft, which indicate the toughness of the steel. If you look closely at the images, you can see the spots that appear on the shaft due to forging the ultra high-strength 300M steel. Also, Sonnax used the internal grain structure of the steel to move with the general shape of the shaft to improve strength.
This Heavy Duty Input Shaft is recommended for applications that involve towing or hauling heavy loads. The Chrysler A618, 47RE, 47RH and 48RE transmissions are built for vehicles with High Performance towing capacity, such as the Dodge Ram 3500.
- Unique, ultra-strong, one-piece design removes the weak connection between input shaft splines and forward clutch hub.
- Each Sonnax shaft is fabricated from forged steel, and can be used with OE seals.
- Custom forged from ultra-high strength 300M steel
- 23-Tooth input spline, 62-tooth clutch spline
Parts ship daily from our distribution center. Expedited shipping available.
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