Reg ... Mine looks like yours in the first pic but with the bolts for attaching the E brake.
The number on the casing is: 631841
Maybe I'm going about this the wrong way ... Here's the story:
In neutral it makes noise like a bad throw out bearing ... I replaced that, no improvement.
In first and second gears going down the road it makes ALOT of noise. The noise calms down in third gear.
My next thought, front bearing. Bearing looks good.
After I got into it, what I did find was that the end of the main shaft where it fits into the input shaft (with the 14 rollers ) is pretty messed up.
So ... both the input shaft, rollers, and main shaft are going to need replacing.
I agree with jpage ... it's just a gear box and there really isn't too much that can go wrong.
The rest of the innards look really good and replacing the two shafts might just solve the problem. (if I can figure out how to get the gears off the shaft).
This leads me to a new problem ... Parts!
Ebay appears to have a couple shafts ... at the usual high ebay prices of course, but I didn't see any rollers.
Does anyone know where I can find the parts I need?
At this point I think I might just try to fix it myself ... whats the worst that can happen?
For those who haven't figured it out yet, I have no idea what I'm doing ... But I'm learning.
I really do appreciate everybody's input ... Thanks!!