Originally Posted by
unworthy1
I have some info: from a Shimano service manual ©1991 and mainly covers the 7400/7402 DA hubs.
They have one page devoted to early UG body removal, and they show that "for Dura-Ace only", it's a different body to "all other Free Hubs" and requires the special tool (TL-FH10, which looks like a standard bolt) and a vise (you twist the entire laced wheel) to remove. The "other hubs" all use that 10mm Allen key.
Even in the HG section they show the DA 7400 and 7402 hubs (which do NOT seem HG-compatible) as being this same "special tool" body type.
So I'm betting your early DA will NOT swap with a "10mm Allen bolt" style body.
(I really should scan this manual, but it's too big a job: huge binder!)
IIRC, but I may not, the EX FH-7250 & FH-7260 were not the same as the 7400 series that were targeted at the emergent MTB crowd. SO, it seems that I'll get this apart within the next day or two to look see.
But I'd sure love to find a tech document for the 72xx hubs to help. . .
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1959 Hilton Wrigley Connoisseur (my favorite!)
1963 Hetchins Mountain King
1971 Gitane Tour de France (original owner)
* 1971 Gitane Super Corsa (crashed)
* rebuilt as upright cruiser
1971 Gitane Super Corsa #2 (sweet replacement)
1980 Ritchey Road Touring (The Grail Bike)
1982 Tom Ritchey Everest
(replacing stolen 1981 TR Everest custom)
1982 Tom Ritchey McKinley (touring pickup truck)
1985 ALAN Record (Glued & Screwed. A gift.)