Scania 81 Splitter

I am assisting my mate doing some repairs on a 1976 unit.

The splitter has been altered to run in LOW range only but he took out the three Banjo bolts on the splitter unit to clean them thinking they were all the same bolts but it turns out two have a big bore and the other a smaller bore.

The question is, to which bolt goes in which hole ?

Any help very much appreciated!

Regards

PM