Well thats what I had thought, never thought about the G series, though I havn't seen too many of them. What had me wondering was my 66 owners manual had 4.11 as optional for c20's, however that may have been a spicer axle it doesnt say, and my fault for assuming it was an Eaton. GMC liked to run the spicer axles in the 60's and they may have been offering them in the Chevs as the option to get the higher gears.. Good info Denny! Thanks for sharing.
