Sperzel tuning machines to Grover?

Karl Nutt · Post by **Karl Nutt** » 18 Mar 2018 8:31 pm

Does anybody know if the stock Sperzel tuning machines on my early D-10 Zum can be replaced with Grover 210C tuners? I was hoping for a direct fit?

Jerry Overstreet · Post by **Jerry Overstreet** » 18 Mar 2018 8:37 pm

Hi Karl. I asked this same question here a few years ago. According to Carter expert John Fabian, probably the keyhead would have to be modified.

I subsequently sold the guitar and did not pursue the issue further. Perhaps someone else has.

Here's a link to the discussion from 2008: https://bb.steelguitarforum.com/viewtop ... ht=sperzel

Tony Prior · Post by **Tony Prior** » 19 Mar 2018 7:22 am

NO, the Grover 210s have a smaller shaft diameter than the Sperzels . The key head shaft HOLE is too big. Been here done this...

You can check the dimensions of each on the specific websites.

John Billings · Post by **John Billings** » 19 Mar 2018 6:31 pm

Sperzel tuners are great! Why do you want to change them?

Karl Nutt · Post by **Karl Nutt** » 19 Mar 2018 8:44 pm

Thanks Tony and Jerry! John, the tuners are very stiff. I had the same tuners on an MSA Classic SS that I bought new, and I didn't like them then for the same reason. However, it looks like I'm going to have to live with them! Thanks again guys!

Jerry Overstreet · Post by **Jerry Overstreet** » 19 Mar 2018 9:15 pm

https://bb.steelguitarforum.com/viewtop ... h+sperzels

Karl, here's another discussion concerning servicing these Sperzel tuners and some ideas from others.

Longer thread here covers some other brands too. https://bb.steelguitarforum.com/viewtop ... ght+tuners