Thread: Gmc 637 v-8
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Old April 2nd, 2017, 09:24 PM
BillT BillT is offline
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Default Re: Gmc 637 v-8

Quote:
Originally Posted by POWERSTROKE View Post
I remember one had a "Working 5-speed", meaning you shifted from high 3rd into low 4th, then low 5th, then to high 4th, and finally high 5th.
I believe they are Clark Transmissions. I had 2 thru the years. One in a '62 6500 and the other in my '67 7500. What's nice about those combinations is that you can go thru 9 Gears and only have to Downshift the Rear twice.
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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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