Well, it appears, as with most old vehicles, that the leaf springs on my G20 have sagged, and as such my pinion angle is now virtually flat, causing some driveline vibrations. So, As I see it, my options are: -- Replace the old springs with new ones (yay!) -- Add some helper springs to get it sitting back at right height -- Add air ride assist of some sort (additional bags or shocks) to boost it up Obviously the springs will be a bear to change, as it's an 86 and got 25 years of rust going on. however I think i can get a sawsall in there ok to cut the bolts, making it a little easier. The shocks on the back are in need of replacing, so it would seem like that would be a good option. I have no experience with the helper springs, so don't know if it'll give me the "lift" back up that i need to get the pinion angle back. Are there other options I'm missing? What would you all suggest?