Designed for hard-working Chrysler A618, 47RH/RE and 48RE units, Sonnax heavy duty input shaft 22121B-01 comes with durability and performance features which are second to none.
Instead of the OE two-piece shaft/hub design, the Sonnax shaft uses a much stronger, one-piece design that combines the input shaft and forward clutch hub, eliminating the weak connection between the two. The Sonnax shaft itself is custom forged from ultra high-strength 300M billet steel to allow the internal grain structure of the steel to follow the general shape of the part, improving shaft strength. It remains one of the most popular upgrades for hardworking Dodge trucks.

One-piece design eliminates weak connection between input shaft and forward clutch hub
Custom forged from ultra-high-strength 300M steel
23-Tooth input spline, 62-tooth clutch spline
Shaft can be used with OE seals

More From This Category

TCI 82-'86 700R4 Valve Body Improvement Kit.

TCI 82-'86 700R4 Valve Body Improvement Kit.

$107.87

TCI Flexplate, 164-Tooth, Internal Balance, For Ford 360/428/460, Dual GM Pattern, Conversion, Each

TCI Flexplate, 164-Tooth, Internal Balance, For Ford 360/428/460, Dual GM Pattern, Conversion, Each

$703.16

Sonnax Extended Length Forward Band Servo Pin Kit, GM 4T60-E, 4T65-E, Each

Sonnax Extended Length Forward Band Servo Pin Kit, GM 4T60-E, 4T65-E, Each

$55.70

Motive Gear Axle Shaft, 1541 Manganese, 5x5 in. Bolt Pattern, 31.375 in. Length, 28SPL, For CHEVROLET C10 1978–1986, Each

Motive Gear Axle Shaft, 1541 Manganese, 5x5 in. Bolt Pattern, 31.375 in. Length, 28SPL, For CHEVROLET C10 1978–1986, Each

$200.51

Motive Gear Axle Shaft, 1541 Manganese, 5x135 mm Bolt Pattern, 31.75 in. Length, 34SPL, ForD EXPEDITION 1997–2004, Each

Motive Gear Axle Shaft, 1541 Manganese, 5x135 mm Bolt Pattern, 31.75 in. Length, 34SPL, ForD EXPEDITION 1997–2004, Each

$200.31