When I first looked at my 56 I was told that it was a 5 speed turned out to be a 4 the standard SM420. I had planed to put a Fuller 6 speed in it but now think I will use a spicer 5 speed overdrive it will be the easer install as the spicer comes with a drive line brake like the SM420 and I have been told they were used from the late Forty’s to the early Ninety’s.


The difference between men and boys is the price of their toys.
Grant from Roy, Washington
1956 6100 Chevy Dump Truck in the Gallery
1964 GMC Drump Truck in the Gallery
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