After I'm done with the meth install I'm really considering going with a 4 link rear suspension as my next mod. I know that there are a few guys on here that have gone this route. I'm looking for a pre-fabbed kit rather than having one custom made. Why try to reinvent the wheel. I know that there is one that uses air bags, but I would really prefer to use the coilovers. Can you guys tell me what are my options (manufactures that make these kits) and pros and cons (coilovers vs. air bags). All I seem to find are 4 links for off road trucks.