Karl, C. and Haas, R., "An Innovative Lightweight Solution for Connect a Prop Shaft with a Differential," SAE Technical Paper 2012-36-0284, 2012, doi:10.4271/2012-36-0284.
Prop shafts and differentials have been improved continuously. They are getting even more efficient and more lightweight. But the interface between these two parts looks still the same since more than 50 years what gives us a great chance for improvement.Rear or front axle differentials are currently fitted with a flange. This flange is necessary to connect the prop shaft frictionally with the differential during the final assembly.The substitution of universal joints by constant velocity joints gives the possibility of replacing a flange connection by a compact, lighter screwed connection.This paper will present a new single piece screwed solution which fits perfectly on the demands of modern all- / rear - wheel driven cars.