Quote:
Originally Posted by Christ
Of course, given that CV axles are most efficient when working in a straight line (in a line that would be suited to a solid axle), you're probably losing that same efficiency gain b/c they're almost never straight.
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If you're adding electric RWD to an otherwise FWD car you can save some coin or get more robust shafts with universal joints as rear wheels do not steer. Also universals shouldn't be run straight anyway (it keeps the needle bearings from spinning properly), so you'll be good.
IRS would be better, but not all vehicles start out with IRS and this conversion would be problematic for suspension mounts. You could turn a beam rear axle to a live axle, body-mount the motor and shaft-drive the diff to minimize unsprung weight, although a live axle adds a lot over a beam axle in a FWD car.