Do not quench. Air-cool only after welding.
Impeller hub failure is common in 6R140 converters regularly pushed to the limit. Sonnax offers flanged impeller hub FD-90-140G to replace worn or damaged hubs. Proprietary heat-treating delivers a high degree of hardness where the bearing rides, while forged chromoly ensures user-friendly welding. This new impeller hub also features an aftermarket first: hardened internal splines to support PTO drive.
January 17, 2017
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