Larry,
I believe that an exact replacement of that style is not available.
It is possible, however, to replace that knuckle style with conventional shanks & flanges.
As Clark said, the WNG option is also viable.
Be aware if using conventional knuckles that the Kimball may have a knuckle spread of 16mm.
Most non-Steinway types are 17mm.
Abel has a 16mm knuckle spread available with an unbored/uncut flange, which allows for a custom fit.
This Kimball also may have a 17mm spread, but I see the 16mm more often than the 17mm.
You will need to hold the new & old side-by-side,
since determining the spread with a sloped knuckle mat not be as easy as one would hope it to be.
I cannot speak for the Renner parts as to the options available from them.
Hope this helps,
------------------------------
John Gallen
OWNER
1040 Pianos
S Windham CT
860-428-6045
------------------------------
Original Message:
Sent: 05-18-2017 09:16
From: Larry Fisher
Subject: Kimball knuckles
1904 4' 8" French Provincial Kimball grand
I'm replacing the hammer shanks and flanges on this piano. It has the sloped knuckles common for the era of that grand. I'm aware of position and diameter concerns when it comes to knuckles. What I'm more concerned about is whether or not it's advised. Has anyone done this before? Any issues I need to be aware of?