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ky-donzi · 09-28-2021, 09:59 AM

Almost all of the older 5 speeds were 1:1 final. There were a few with OD and if I remember correctly they had weird shift patterns. Some achieved OD by swapping the gears on shaft cluster. So a 1,2,3,4,5 became a 1,2,OD,3,4 3rd was revered to become OD.

The reason I tell you this is the old OD transmissions weren’t very impressive, look for a modern 5 sp out of a more modern med duty truck, or used a nv4500. In a 2wd format they are easy to find, and if you get one from a 3500hd it will have a parking brake on the tail shaft.

09-28-2021, 09:59 AM	#5
ky-donzi Registered User Join Date: Jun 2012 Location: madisonville ky Posts: 310	Re: C50 5 speed? Almost all of the older 5 speeds were 1:1 final. There were a few with OD and if I remember correctly they had weird shift patterns. Some achieved OD by swapping the gears on shaft cluster. So a 1,2,3,4,5 became a 1,2,OD,3,4 3rd was revered to become OD. The reason I tell you this is the old OD transmissions weren’t very impressive, look for a modern 5 sp out of a more modern med duty truck, or used a nv4500. In a 2wd format they are easy to find, and if you get one from a 3500hd it will have a parking brake on the tail shaft. __________________ 61 GMC 4x4 1-ton flatbed 4bt cummins, ranger od, sm465, np 205, d60F, d70R 4.11 10,000 ramsey PTO winch.... SOLD 73 k5 gm crate 350-265 / sm465 / np205 3.73 posi Last edited by ky-donzi; 09-28-2021 at 08:48 PM.