Have any of you GMC guys seen this spacer? Anyone seen one on a Chevy 6?
I have one on my '52 GMC 228 between the engine block and the "octane selector". None of my GMC Master Parts Books (1939-60, missing only 55.1) show this part.
The first picture is shown with the "nipple" up, but it actually installs with the nipple down which fits into a dimple on the block. The distributor shaft goes thru the big hole and the same bolt that you loosen to adjust the "octane selector" goes through the smaller hole.
The second picture is from the ’52 GMC Maintenance Manual shows it peeking out from under the octane selector.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12 '52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
