Anyone know what speed to expect out of my 57 GMC LCF 2 ton?
I have been driving it around the place, but not out on the open road yet.
It has the 270 I6 engine, 2 speed rear, with 6:40/8:72 gears, SM420, 4-speed tranny. 8.25x20 tires.
I too, was wondering what the top cruise speed would be, without the engine screaming.

Last edited by Old GMC Gold; 09/28/2014 8:26 PM.
57 GMC LCF 370
55 John Deere 40-W
59 John Deere 430-W
2000 GMC 4x4
56 John Deere 420-W
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