Hi Guys,
The 3 stud winch head I have posted here was designed by Link Belt Corp. in late 1944 as a replacement for the Braden Model J-2 winch which the Army determined was too week to handle hard winch use.
See note below:
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About the Link Belt Capstan Winch
The Link Belt capstan winch was designed late in WWII as an improved capstan winch for the MB. Field reports indicated that the Braden winch (model J-2) in use at that time was breaking under use, was not sturdy enough, and the gear teeth had a tendency to strip. The improved Link Belt winch was manufactured to overcome the problems of the Braden winch.*
The Link Belt winch can be identified by three cap screws in the top of the winch head (as seen in the diagram on the right).
*Source: PreProduction Civilian Jeeps, by Frederic L. Coldwell
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I have a copy of an original Willys blue print (see below images) which shows the 3 stud Link Belt winch along with bumper mounted rope roller system as part of a revised Army G503 winch kit. The below images of this blue print are a little fuzzy as it is a copy of a copy, but the revision date of 12/21/44 can clearly be seen at the bottom of the print. The engineer that signed off on the print was a guy named Carter.
The stronger Link Belt winch probably didn't go into service until later in 1945, but as best as I can tell, it was orginally designed for the MB/GPW series of Jeeps. Because of its late design, Willys used it on the later CJ2A and civilian Jeeps after the war. I do have the more common Braden J2 winch on my 45 GPW and I can tell the casting design of the Link Belt model does look a little more robust.


