Yeah it isn't going to stay IFS that is why I was asking about springs rather then torsion bars. I am only looking at the 350 because I can get a real good deal on one so it would be far cheaper then building a 4.3. Turns out it might end up a null issue. Found out that in BC any modification to the firewall will fail me for a VI. That includes wheel well tubing and even a little hammering to fit a V8. Bummer.

I have been looking into all the options for some time now so I know all the pros and cons. I am not overly sold on a V8 either, I am just finding it hard to justify the cost of a 3.4 or 4.3 swap for less then impressive improvements in power.

OK, so back to the question at hand. So for instance Trail-Gears springs have a 220lb/inch rate. What does that mean? Does 220lbs compress the pack 1" or each spring 1" so the pack would only settle part of that depending on the number of leaves? I have been searching online a bit but haven't found much that makes sense to the layman. I would just do it Rodgers simple way but since I haven't done the SAS yet I can't really do that. And I can't order springs for the SAS until I have a better idea of what my end weight and therefor ride height will be.