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Grease Monkey
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Grease Monkey
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Just add some food for thought, my interchange manual says that a 1930 Chevy transmission was also used by GMC 1927-28 T11 trucks and Pontiac 1926-28. So it is possible that the transmissions with the extra holes maybe a GMC or Pontiac transmission. Things get changed over the years so you never know what might be on your car.
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
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I was just up and looked at my 1929 Sedan and the two holes that are in 63 SWC transmission are for the bracket that supports the middle of the brake cross shaft and bearings.
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Shade Tree Mechanic
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OP
Shade Tree Mechanic
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I was just up and looked at my 1929 Sedan and the two holes that are in 63 SWC transmission are for the bracket that supports the middle of the brake cross shaft and bearings. And the winner is Andy !!The riddle is solved. I looked at the parts book and found like Andy said there are several differences in the brake rods at that point. Thanks, Larry.
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ChatMaster - 15,000
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ChatMaster - 15,000
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The '28 transmission looks like the '29 with the two holes for the brake cross shaft support. They differ as the speedometer cable is on opposite sides.
How Sweet the roar of a Chevy four!
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ChatMaster - 4,000
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Sorry am Behind... Is this what you are referring to in regards to the Two Tapped Holes in the Transmission and the Bracket (Brake Cross Shaft) they Support ?? Transmission 1Transmission 2These are from my 1929 4 dr sedan...
AACA - VCCA - Stovebolt - ChevyTalk
Love the Antique Chevrolet's from 1928-1932
The Beauty, Simplicity, History, and the Stories they Tell
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Now that we have cleared up just what the holes are for (I personally have never seen these on a U-Joint retainer), it is interesting that the '29-'32 parts price list shows the retainer (part #590406) as being the U/J retainer for '29,'30 and '31, and the illustration on page 34 shows the part as having the 2 extra holes for mounting the earlier brake cross shaft bracket. These holes do not exist on the case for my '31 Coach which has a '30 Transmission. I guess we can conclude that at some point the part was manufactured without the extra holes, likely once the "brake cross shaft support bracket" was no longer used. Not sure just when that occured. Later price lists may list both the earlier and later retainer.
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Yep....that's it!! Thanks for posting the photos.   
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
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