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66C10LB · 02-07-2021, 09:37 PM

Nice looking truck! Your trans may be the original SM420 four speed with granny low. This is the same tranny as my 66 C10 LWB

02-07-2021, 09:37 PM	#9
66C10LB Registered User Join Date: Jul 2016 Location: West Kelowna, BC, Canada Posts: 204	Re: “George” the 1964 C10 Fleetside LWB Nice looking truck! Your trans may be the original SM420 four speed with granny low. This is the same tranny as my 66 C10 LWB