Superior Engineering has put together  kit to lift your nissan 4-5 inchs. Kit includes 
2 x Coil springs front
2 x Coil springs rear
2 x Front 45mm Tough dog Big Bore Adjustable shocks 1047/6
2 x Rear 45mm Tough dog Big Bore Adjustable shocks 1206/6
1 x Tough dog EXT Steering damper
1 x Front adjustable panhard rod
1 x Rear  adjustable Panard rods
2 x Drop box's (Instructions)
2 x Extended brake lines
1 x Extended diff breather kit
1 x Extended brake proportioning valve bracket
2 x Upper adjustable control arms
1 x 4140 H/D adjustable Drag Link
2 x Coil drop out cones
2 x Coil retainers
2 x Damper brackets

Superior engineering will contact the customer upon receiving an order to discuss the correct rate coils.