coachgeo
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not that it matters much.... if I recall right the study on this showed the double cardan worked marginally better than original.. not worth the expense level of marginal though.. and the Rezeppa really worked fairly well....... problem is...... the particular Rezeppa used in the study was custom made. Reality though is no Rezeppas as huge as is needed for vehicles ths size is commercially available..... and govt. requires the parts (sorta kinda) have to be commercially available so military could not choose to go that route. And far as I know.... no Rezeppa's that size have come to market since the study either....
Double Cardan and Rezeppa ujoints have been tried with poor results. The extreme angles and high speeds resulted in overheating and failure in short order. The best and most affordable options are to have new drivelines made by a high quality builder with the best quality components.
but maybe Im recalling the study info incorrectly....
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