No, no, no!!!!
All Big Healeys and all MG's and all Sprites, Midgets, Triumphs. etc. all
used the same splines.
What did change for the Healeys and MG's at least was the thread pitch of
the knockoff cap thread.at about the same time in the mid '60's. They went
from the fine thread (12TPI) to coarse thread (8 TPI) at about the same time
in the mid '60's.
----- Original Message -----
From: "Wm. Severin Thompson" <email@example.com>
To: "'Dodd, Kelvin'" <firstname.lastname@example.org>; "'MG List'"
Sent: Tuesday, May 31, 2005 3:20 PM
Subject: RE: Spline size
> The later Big Healeys went to a different spline... like maybe from a fine
> to a coarse for more strength... that's why I was asking, since an MGC GT
> would be later than a big Healey, it might be the coarse thread...