New Larrivee owner here

[cadebryant]

I read on other threads that RS owners have had good luck with replacing the Klusons with Grover Rotomatics - apparently they drop right in, the only drawback being the extra unused screw hole (which can easily be filled).

[Cybercanyon]

Kluson/Tonepros are no longer being made as of 11/2014.  Once supplies dry up that's it. Tonepros discontinued their TPK line.

I looked for other options and found some Kluson/WDMs that are a drop in replacement for TPK's on my RS4 Forum V.  They are sealed die-cast with a 19:1 ratio.  They are called Kluson Revolution "G", KED-3801.

I have installed them without any problems and so far they are working fine and they look good.  Time will tell as far as quality and reliability is concerned.

[Cybercanyon]

Here are some photos of the original KlusonTPKs compared to the Kluson Revolution's.

[cadebryant]

I ended up getting Grover Keystone Rotomatics.  They installed easily and work/look very good.  But seeing pics of those Kluson Revolutions.....dang, a part of me wishes I had gotten those instead!