July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

3rd & 4th Gear Synchronizer Retaining Ring Specifications

Mark	Thickness (mm)	Thickness (in)
A	1.80-1.85	0.0709-0.0728
B	1.85-1.90	0.0728-0.0748
C	1.90-1.95	0.0748-0.0768
D	1.95-2.00	0.0768-0.0787
E	2.00-2.05	0.0787-0.0807
F	2.05-2.10	0.0807-0.0827
G	2.10-2.15	0.0827-0.0846