[TR] Caliper O-Ring

[Randall]

Moss does have them listed.  Either 583-821 or 583-820, depending on whether
you have the first or second generation split calipers.  (According to Moss,
your TCF series would have the 2nd gen caliper and take 583-820.)

IIRC the later seal is a standard size O-ring; while the earlier seal had a
rectangular cross section.  That may explain why the early seal is almost 3
times the price of the later one!

-- Randall