what exactly are you working on? if your 241 is driver drop and bolted to a 23 spline tranny,just swap it out for a jeep 208,wich is allready fixed yoke and same low range(2.61).
also if angles are a prollem you are prolly better off staying with single joints. a double cardon joint doesnt allow for alot of angle without taking it apart and alot of clearancing
if its not street driven,just turn the rear pinion up as much as you can to lessen the angle at the t case.at road speeds you may have some vibes from the angles being different,but if its not a daily driver its prolly not that big a deal.