This is an age old debate. Most go with the rear mounted. But there are those that argue that a forward shackle will aid the vehicle in climbling/negotiating over an obstacle as it moves the axle slightly forward during compression.

I would go with the rear mounted personally, just due to the fact that if you hit something ( ie a BF rock) off road your less likely to damage a solid well built mount than you would having a big honkin shackle limiting your approach angle.

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..