New Sonnax GM 6L80, 6L90 Output Planetary Gear Kits
Avoid the expense of a new planetary assembly in GM 6L80 and 6L90 transmissions by installing Sonnax output planetary gear kit #104584-30K for 6L80 transmissions and #104584-40K for 6L90 transmissions, respectively. For lube-upgraded pinion pins and other essential build components, Sonnax additionally offers output planet saver kit #104584-80K.
