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**kwmech** · 08-17-2016, 05:42 PM

So your first gear is a 'granny gear' 6-1 Trucks only, I think this was a 4 speed the GM used with the transition in 68 from the SM420 to the SM465

08-17-2016, 05:42 PM	#10
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,724	Re: What transmission is this and what's it worth? So your first gear is a 'granny gear' 6-1 Trucks only, I think this was a 4 speed the GM used with the transition in 68 from the SM420 to the SM465