Stop worrying about input shaft failure when running the GM Powerglide in the most extreme applications. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. Whether you have an existing assembly or start from scratch in the gear ratio of your choice, it’s the best way to connect huge power to Sonnax Extreme planetaries for great run after run with minimum downtime.
Long (OE) length, 27-spline extreme strength output shaft 28922-27L is one of the five components in the Sonnax Powerglide big shaft system. Top-notch engineering and precision manufacturing guarantee unrivaled performance and reliability. Also available in 27- spline short and 32-spline long (OE) lengths, these are the same shafts built into complete Sonnax 1.69 and 1.80 Extreme planetary assembly kits.
Torsional design with rolled splines
Bolt-on for easy service
Exclusively for use with Sonnax 1.69 and 1.80 gear sets
The Sonnax big shaft system for Powerglides requires changing to a 35-spline turbine hub.
Includes:
Shaft Length Option: Long
Material: Heat Treated 300M Steel
Spline Tooth Count: 27
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