Swing Spring Conversion

put a swing spring and spitfire 1500 antiroll bar on today, improves handling no end! i seem to have gone full circle with diffs, i tokk the origional one out as it was whining, i then put one from a vittesse in, that whined, then promtly went snap! i just put a third diff in, and that whines about as mush as the origional diff, if not more! trying stuff!