I'm new to this site, so hopefully I'm posting in the right spot. Recently I purchased a 2003 Chevrolet Tracker lt 4 door ,4x4 with 2.5l and automatic transmission.  My question is what all is needed to put a Suzuki Samurai front axle under this vehicle.  I am looking also to lift roughly 4" in the process.

Axle, high steer arms, yj's, extended brake lines, driveshaft/spacer.
You'll need to fab spring mounts, perches, etc

sent from an anus from an asus

You'll need wheel spacers and wider wheels to bring the front axle width inline with the rear. Link arms and if your going to trouble yourself with a live axle front, go for coilovers.