Rod vs. crank vs. bearings questions

[ahdoman]

I fell like I'm hogging the board tonight but it's only because I finally have some time to start my rebuild; 73.5 2.4T CIS. But, I'm at a loss of understanding on a couple of things (btw - using Wayne's rebuild / modify book for reference)...
1) The part # on my rods is 901.103.105.OR I don't find that in his reference table on page 205 and what is "OR"? I also don't find that number in the PET or PP parts listing

2) I'm having trouble finding the correct set of rod bearings. The OD (D2 on page 204) of the crankshaft where the rod connects is 51.95mm. The ID on my rod (assembled, fully tightened) is 55.95. The standard bearing is listed as 56.971mm-56.990mm. Is this an OD or ID? What is the correct bearing size I need? It seems the ID's on my rods are too small for a standard bearing?

[Flat6pac]

2.4 rod bearing is 914.103.141.00 std
There is no need to measure your rod without the bearing shell because the only thing you can correct is if the big end is out of round and needs work, just give them toi the machine shop and they will true size it
The numbers are casting numbers and dont cross reference
If you look on the back of the bearing there is numbers stamped. If the # is a Porsche number it will say if it s std but then micing the crank will be the same thing. I just look at the old bearings when I open the engine so I know what to expect when I mic the crank.
51.95 represents a need of a .25mm cut crank or 1 st cut on the rods Bearing # 914.103.141.50
Remeasure to make sure I m correct, you must meet spec cut or uncut

Bruce