4L80E INTERMEDIATE / MAIN SHAFT / 300M
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Overview
Sonnax Heavy-Duty Main Shafts
Main shaft failure is a common problem in performance and heavy-duty GM TH400, 4L80-E and 4L85-E units. Sonnax replacement heavy-duty main shafts are manufactured from high-strength 300M with proprietary heat treatment and post heat-treat processing for exceptional performance, durability and value. These shafts are recommended for applications up to 1,000 hp.
Additional details:
* Advanced torsional design with spline and cross hole refinements for additional strength
* Direct replacement for OE shafts
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Some parts are not legal for use in California or other states with similar laws / regulations
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