This is What Im trying to work out Jack...

What was the Pt no for the Ramped Carrier in the patent? I know it was made per the diagram as they are on some of my mowers.
For now,I can only assume 9A?

And yes From What I know the 9B is just plain.

So Im assuming the ramps were dropped fairly early then.

Ok so Im not going to alter my early Model 1s, use the ramps on the late 1s, transitionals and early model 2s, and keep the 9B For the rest.

Sounds close enough for now.

Thanks for your Input Guys.