A855 - 5 Speed

Here you go. Read page 3 very close. https://www.jericoperformance.com/break_in.pdf

There is another set of instructions I can’t find for clutch assisted gear boxes. Simple reasoning says if you can’t lock up a clutchless box that goes into the next gear before it comes out of the lower gear, you damn sure can’t lock up a clutch on the shifts and not kill the box.

In a clutchless gear box, the slider goes into second before it disengages from first. Same as you go up in the gear changes.