What's the difference between a saph rear prop and an escos rear prop?

 

escos is shorter rear section

the front section has the thin rubber doughnt

safs use large rubber doughnut and are longer rear section

 

Ok thanks, the box was recently swapped on my saph and the mechanic said he thought the two pieces (splined section) should have mated up further, I think the gearbox might be off an escos, but I checked it against the old box and another one I have and the output shaft to the rear prop all look the same length, I was informed the escos one is different to the saph (with the escos flange being shorter?)

 

the escos out put shaft is longer, uses a different 3 prong thing, and use shorter bolts

the actual front part of the props are the same just the doughnuts are different

 

Not sure that's right. The thick donut has a bush for the spigots on the prop and output shafts, but the thin donut allows the shaft to go through and slip over the output shaft.