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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2009 Posts: 5,989 Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT | | Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT Joined: Sep 2009 Posts: 5,989 | sub57,
I sent a reply to your Parts Wanted ad with other info based on an initial search of the GM Parts books I had at hand, not knowing about this casting number.
Now that you provided this casting number info, it turns out that that part has had a number of different GM Part numbers assigned to it.
Original GM# 3697701 shows as both the casting number and part number, after the originally listed GM# 3718011 (casting# 3707340) appears to have been replaced by it in early 1958 (I think?). Was listed for 1955-62 and some early 1963 1/2 ton axles.
GM# 3697701 was later replaced by GM# 3854311 (same part and application for 1955-62 and some early 1963 1/2 ton axles) - just a new part number.
GM# 3854311 was later replaced by GM# 3867832 (again same part and application as before) with another new number.
GM# 3867832 has since been removed form the parts catalogs as no longer available.
On a bit of good news, check out your Parts Wanted ad as I have added a new reply with a possible source I found after all this research.
Hope this is clearer than mud.
Dan
~ Dan 1951 Chevy 3 window 3100Follow this story in the DITY Gallery"My Grandpa Carl's Truck and How it Became Mine"1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
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