ARB,

Baka you were refering to OEM coil springs....ungas' coil spring upgrades are not that cheap if i'm not mistaken (tama ba ungas?!?).

Lifting OEM leafsprings is sometimes done by a taller sackles (cheap alternative) instead of the curved leafsprings that you might be refering to (which are branded kaya mahal). Wala ring OEM na lifted (curved) leafsprings that I know that exist here kasi.