I found a tank . I'm waiting on it because I need precise answers rather than educated guesses. Thanks for info.
Yep, internet threads get (wrong)answers to questions that were never asked.
Maybe single point yes/no questions might help stop ?
So Iíll answer the question in the title
Re: Can you see the differences between an Eldo 5 speed vs an Ambo 4 speed?
YES, CHALK & CHEESE
RE 4 speed cases, 5 speed internals & cover
You might enjoy reading about the Tallio Rosso (red frame), the pre production V7 sport that basically did that, lots of pics on net.
Parts used will not be available but anything can be made
Also see Charlieís pix on thisoldtractor showing how late 4 speed cases were changed to allow drilling/tapping for the 5 speed cover
Re Gearboxes and final drives, seriously easy to fit any but do bear one word in mind óRatios
For instance a 4 speed with a 7/33 is pretty low gearing
5 speed with 7/33 was factory spec for most tontis although 5spd loops used 8/35
I have my choices but is easy maths, compare with top gear on 6 speed / carc to see what your motor will be doing with new choice
Swapping ratios into any fd box is a doddle, use factory manual if you donít already know how.
As Charlie said, only sensible to use disc swinging arm with bigger uj and support bearing. Whichever fd box you use, use later big bearing pinion flange not early drum one