"Shell thickness"= 3mm

"thickness of bearing housing" = 4mm

"D primary end bearing"= 34mm

"D Primary main bearing"= 52mm

"D Output end bearing"= 40mm

"D Output main bearing"= 54mm

"D Shifter rod"= 8mm

"D Output shaft"= 34mm

"D Input shaft"= 22mm

"W Primary end bearing"= 17.3mm

"W Primary main bearing"= 20.5mm

"W Output end bearing"= 12mm

"W Output main bearing"= 20.55mm

"R Shifter rod"= 37mm'distance from centre of primary shaft

"Separation of shafts"= 61mm

"Separation of plates"= 158.46mm

"Separation of plates/2"= "Separation of plates"/2

"Height of output end bearing housing"= "W Output end bearing"+17.26mm

"Height of primary end bearing housing"= "W Primary end bearing"+3.2mm

"Length of selector rod"= 110

"Length of selector rod /2"= "Length of selector rod"

"Depth of selector rod within mount"= 8mm

"D largest gear primary"= 56mm

"+10% D largest gear primary" = "D largest gear primary"*1.1

"D largest gear output"= 77.4mm

"+10% D largest gear output"= "D largest gear output"*1.1

"Minimum clearance shifter rod"= 28mm
