Industry News Sonnax GM 6L45-6L90 Pump Vane The pump vane is a replacement for rebuilding pump rotors. Advertisement ByTransmission Digest on October 15, 2020 The Sonnax pump vane (p/n 76742) is a quality replacement for rebuilding GM 6L45, 6L50, 6L80, and 6L90 pump rotors. It’s a cost-effective alternative to replacing the entire pump rotor assembly.AdvertisementClick Here to Read MoreAdvertisement Learn more at www.sonnax.com. Advertisement In this article:6L50, 6L80, 6L90, GM 6L45, Sonnax Industry News: Transtar Introduces Reman Subaru CVT Unit Industry News: Valve Body Gaskets for Chrysler 62TE 2007-Up Industry News: Tri Component Introduces Clutch Plates for Jatco RE5R05A Industry News: Raybestos Announces Chrysler AS68RC Transmission Clutch Pack Module Advertisement WEBINARS Watch a webinar for free on-demand! E-MAGAZINE Read the most recent edition of Transmission Digest. SUBSCRIBE Stay up to date by signing up for Transmission Digest newsletters.