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I have an old New Process cast iron 5 speed that I'm trying to identify. All i know is that it came out of a mid to late 60's dump truck and has a 1:1 top gear. It was mated to a spicer 5831 auxillary transmission and has the normal NP aluminum top cover and aluminum rear bearing retainer.
Cast into the side after the NP cog is "G-91861"
If anyone could help me ID this thing I'd really appreciate it!
The Spicer 5831 was used on GMC 5000 and heavier trucks. It is a 3 speed with low, direct and overdrive. Still working on more info on the spicer tranny.
yeah, i know all about the 5831. that's why i picked it up, thinking about a cheap OD. But now circumstances are forcing me to unload a bunch of stuff, so i'm trying to figure out what 5 speed it is. See if it's worth me keeping or not.