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#1 |
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Join Date: Feb 2012
Location: Mid-Michigan
Posts: 38
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What if any are the differences between a 39 and a 40 rear end? Thanks to all
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#2 |
Senior Member
Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,083
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All '39 axles housings have a threaded hole for a grease fitting at the outer end - near the backing plate. In mid 1939, a plug was placed in this hole thereby (in effect) eliminating the grease fitting. In early 1940, that was redesigned and the threaded hole for the fitting was subsequently eliminated. Other than that, '39 - '40 "rear ends" are identical.
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#3 |
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Join Date: Feb 2012
Location: Mid-Michigan
Posts: 38
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Kube - Thanks, that's what I needed to know. Appreciate your help
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#4 |
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Join Date: Dec 2011
Location: ottumwa Ia.
Posts: 132
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Another big diff.is 39 still has the big bolt pattern where the 40 had the 5 by 5.5 pattern for the wheels Cliff.
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#5 |
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Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,083
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That's the brake drums...
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#6 |
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Location: Wisconsin, USA
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#7 |
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Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,083
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You're very welcome. Enjoy your evening!
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#8 | |
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Join Date: Sep 2013
Posts: 1,027
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![]() Quote:
Phil |
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#9 | |
Senior Member
Join Date: May 2010
Location: Near Rising Sun, Maryland
Posts: 10,862
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Even though brake drums could have been removed or swapped, they are still part of the rear. If someone is trying to ID a rear and it has '39 drums/hubs, it's more likely to be a ''39 rear than a '40 since a swap in drum/hubs is probaly more likely to have gone in the opposite direction to '40 drum/hubs, imo.
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