Re: Red Headed Step Child
Don, I believe you are right, but I would have to check on it to be sure.
The 637 is pretty rare. I've been a big truck fan since my teens and I've never seen or even heard another 637, except in pictures and YouTube videos.
Mine was extra rare, as it was in a '71 GMC 9500 Conventional Cab, along with a 10-Speed Road Ranger Trans.
Most, if not all of the ones I know of online are in Fire Trucks like you have.
What kind of Trans do you have in your truck?
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Drove and owned many, but some of the more interesting ones were:
-'60 GMC 2500 Dump, 305 V-6
-'62 GMC 4000 Flatbed, 305 V-6
-'62 GMC 6500 Flatbed Dump, 478 V-6
-'67 GMC 7500 Box, 6V-53 Detroit
-'71 GMC 9500 Flatbed Dump, 637 V-8
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