The speedo driven gear on your MY6/A833 transmission can only be installed/replaced by removing the tail shaft housing. The plastic/nylon driven gear may be attached/secured in a number of different ways, including possibly press fit, retained with a spring tab or small locking clip.


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)