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IMO, 14 bolt u-joints, 1410s, are plenty strong, just get a pinion guard if you want to play on the rocks. probably cheaper and protects both yokes and straps. if the strap is taking that much abuse, then the yokes are as well and will eventually fail too.
the differance is about .21" about a quarter of an inch and that looks like what his difference is also. imo he has some money to waist on a new yoke he should have got the pinion guard. and like he said you have to deal with the crush sleeve also.