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Would it not be practical to move the front mount forward on top and bottom arm to near the vertical plane that a trailing arm normally attaches to so it more directly transfers the loads of accel and decel and lessens loads on the rear portion of the cradle?
yes I do think you are right, but I also think a third member would be warranted for that span or even a shorter span wouldn't hurt. I went out and checked some #'s. the wheel bearing carrier and the heims ( rod ends ) are 8" on center and the outside of the carrier is 10" so I would go atleast 20" - 24" apart at the frame upper and lower to spread the load. I only say this because of what I have seen in real world use. enemy's rail has held up well all in all but I was discussing this with him the other night while we were discussing a one seater for just jumping use.
No not like ricks but serving the same purpose in effect.I'm thinking or 3 mounting points on the same pivot axis.probably not necessary but I'm a little concerned with any twisting that might be induced while braking. I was thinking the h-arm like you have with the 3rd(on the same pivot axis as the other 2) placed forward to carry the thrust of accel./decel.
that's it! I'd position it where it would carry on through to the rear heim. I'm also thinking of doing away with the heims at the wheel end pivots and using full width flanged delrin bushings like on the front a arms of this car..