Quote:
Originally Posted by Tony Smith
My understanding is that Cab 11/12 CMPs did not have the spacer bracket on the Windshield frame and used a short-spindle S 570 wiper. Cab 13 trucks which had the stand-off bracket mounted to the windshield frame (and therefore possibly the 1533 MCP) used either the S 609 or the S 548 with a longer spindle. Each of these came in a LH and RH version
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I agree that there wasn't a spacer added to the 11/12 windshield frames (at least in the context of Canadian Chevrolets) but the frame was made of tube/pipe plus the panel that held the glass, so the total thickness was similar to the cab 13 frame with spacer. To my eyes, the proportion of the s-609 motor looks closer to what I'm used to. Attached photo shows what I think of as a typical motor both with and without the support tube for the wiper shaft.