I'm not sure you'll find the information you need here. You may want to try www.ih8mud.com. They are an offroad toyota focused forum but they know their stuff.
Good luck to you.
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Trey
Current ride: 2001 BMW 540iT soon to be manual swapped.
Former rides: 1979 Trans Am WS6: LT1/T56, Kore 3 C5/6 brakes, BMW 18in rims