[OZVENOM]

imho the the best combination is 350 to 450 lbs in the front
and around 200 lbs for the rear with irs and may be 225 for a live axle.
when you fit the springs you should not have to pre load them to hold the car up if you have to wind them up to get the car up they are too soft a spring. also the angle that the shock leans over at will affect the rate when i moved my suspension out the shock leaned over at 30 deg so i had to use a 600 lb spring to get the 450 that i originaly had.

oz.