As you know, the standard windlass of the 310 has only a capstan (drum) and no gypsy (chainwheel) and the kit to modify the VC500 to a VW500 is no longer available.  So with the idea of doing some extended cruising, I just purchased and installed a new Maxwell VW 500 windlass with a chain wheel (gypsy) .  The footprint of the shaft (spacer) tube is the same as that of the VC500 (with some important caveats) but the VC500 has 4 studs and the VW500 has only 3.  I had to fill the old holes and drill the new ones.  That was not very difficult.  The hard part was installing what's called the the "collar" (a  #!?*%@*#  split ring plastic retaining washer); a very long story.  Otherwise it was "fairly" straightforward.  However, there are a lot of little details that I have learned that would save an would be installer a lot of time.  The manual is woefully inadequate and even has some errors.  I discovered this by contacting Maxwell.  They (Will Vrooman) were very helpful and knowledgeable.  If you are considering installing the VW500, let me know & I will give you a lot of very useful hints.
Jeff
	
		
			
		
		
	
								Jeff
				
		