four door spring conversion??

[snafu4u2s]

ok need some help. i have a 99 sport and wanted to convert the mono leaf to the leaf pack from a 4 door. does the leaf pack just bolt up? and whats the differences in the spring rating. does it matter if i use a different year 4 door spring pack? if i could get these answered, it would be great. thanks guys

 

[Alec]

Use a spring rating closest to "Z", I believe "W" is the stiffest. This will sacrifice a little ride, but will resist sag much better.

They're a direct swap.

 

[jasonb]

any year explorer will work. newer with fewer miles will likely be less sagged.