I have the calmini shackle reversal and petroworks spoa pads, which are about 1/2 taller than most spoa pads, I still have the stock driveline, with a 1" spacer. It works, has never pulled apart, but there is less spline engagement than I would like, and I plan on removing the shackle reversal and doing something different up front. I believe rockrat makes adapters for toyota drivelines, and if you modify a 2nd gen (86-95) toyota double cardan joint it flexes pretty well, you would have to shorten it a bit, but that would probably be the cheapest and easiest.