Kombi gearbox codes

Just wondering if anyone has a list of Kombi gearbox codes and the ratios?

I have two boxes....details are:

3 rib (1600 box i think??)
1
002.301.103 A
CE 099 2826

5 rib (1800??)
002.301.103 F
3
CM 06 06 5

Any info appreciated....thanks!

PS. If I've posted this in the wrong forum feel free to move it to the right one

http://www.vw-resource.com/transaxle.html#codes
http://www.pre67vw.com/production/gearbox_codes.aspx
http://www.vwheritage.com/vw_parts_Engine--Gearbox-Codes_act_page.render_pageID_582_lang_EN_country_GB.htm
http://www.partsemporium.co.uk/type2gearboxcodesandratios.htm
http://www.thesamba.com/vw/forum/viewtopic.php?t=143138
Take it all with a grain of salt but!

My 1968 1500 beetle transmission is not working, where is the gearbox code located on the gear box? Can I read it while the gearbox is in situ?