hello, did the 37 tube axle have its own wishbone or did it run a 37 wishbone the I beam pictured is 1939 does it needs 39 bone It wont fit my incoming 37 unsplit wishbone then, so don't buy it and dop it a bit, wait for mine to come ?????????????????????????????
Looks to me like your tube axle is made to fit a 28-36 Ford with 36 1/2 spring perch spacing and narrowed to 48 1/2 " for king pin spacing. I would send the I beam to Sid for him to drop if it was up to me. Sid can stretch the drop to maintain the 48 1/2" kingpin spacing on the I beam.
That beam looks to have the wider perch spacing of a post WW II axle. And as @alchemy said show us a front view. There are easily seen details that will help ID it.
This info should be re-checked as it has been a long time since I read it in the 1938-9 Ford resto book from the V8 club. Roughly, Ford installed tube axles on small sample numbers of 1938-39-40 85 HP cars assembled in michigan and on some of the very few 1940 '60's. No mention of other 60's or of 1937. These seem to be just a few tubes at a time as a sort of consumer durability tests. Now, what you may have...some were made for Model 62 for V8 60's If 62 use a slightly narrower than regular US?Canadian pattern wishbone, I think that's what you have. The 62 also got small numbers of partial production tube axles. I think the tube axles for them were slightly oval? The 62 was an England and Europe only Ford that looked like a mix of Zephyr and '37 ford styling. Most common was probably the French Matford. These were all V8-60 until WWiI...then they got 85 engines foe WWII use, and kept them as the Ford Plot until about 1953.