Alright guys i'm pretty set on getting a set of bilstein 5100's for the front of my 03 tundra 4x2 AC...i have a 4.5" tough country lift so i'm gonna leave the rear dampers alone since they are in good shape.

Now my questions here are that i've found through some research that the stock spring length on the front is 14" but i have not been able to find the in/lbs rating of the spring itself. I planned on running either a 16" spring on the stock height adjustment setting of the bilstein. However i do alot of off roading and really need a stiffer spring. Do any of you have reccomendations for how high i should go on the spring rate? or even what the stock spring rate is.