They have an awkward shift pattern
R 2 5
1 3 4
Are the 205 and 207 Clarks different from the later clarks? This site is showing 1st and reverse on the right side.
http://www.chevyc60.com/the_transmission_page.htm That seemed right to me, since I can feel a spring I have to overcome to get to the right side. I think my choices will either be:
2 4 R
|_|_| Direct Drive 5th
| | |
3 5 1
OR
2 5 R
|_|_| Overdrive 5th
| | |
3 4 1
The latter pattern would be the overdrive version. The numbers in red would be 1:1 in either shift pattern. What they're really doing in the OD version is taking what used to be the direct drive 5th gear and saying it's 4th, then regearing 4th to be an overdrive instead of an underdrive.