best advice would be to find a full suspension kit. Not something with just spacers and having to find all the other parts seperate. Spacers call for a bumpier ride anyways. Find somethin that has the full coils, all the linkage, and everything you'll need to do it right. It's easier cus you wont be buying everything seperate. On top of that a 3" lift doesn't call for much fabrication or mods. All the parts you'll need will be in the kit.

'99 Toyota 4Runner Limited

RP Black Widow|8K HID Kit|265/75 Federal MT|Cobra NightWatch CB|Fosgate Sound