02 4.6is lowering springs?

[smwmustang]

My 02 has the rear air suspension only. I have seen springs advertised for this set up but did not know what was involved or if they would work.

Has anyone with a 4.6 had this done and can your recommend springs and cost.

She is in the shop getting timing chain, fuel pump, oil pump, all new gaskets and all new lifters. Long story but the lifters are on the shop as they gave it to me with no oil pressure and it killed two lifters.

If I can get them in time I would like the shop to go ahead and put them on.

Thanks,

Shawn