Hello Everyone. Yotatech newb here. I've been doing a lot of reading on here and many other forums but I haven't been able to find anyone in my particular scenario. About three years ago I bought this 85 pickup which is on a 88 frame with a trail gear SAS and trail gear leaf springs front and rear along with trail gear high steer kit. The seller didn't know if the springs were 3", 4", or 5". Well the time has come to rebuild the suspension, among other maintenance items, and I'm struck trying to figure out what trail gear springs to buy 3", 4", or 5". The truck is on 37s and I don't plan to go any smaller but I want the truck as low as possible. Based on what I've read I'm leaning towards the 4" springs but then I see that the front might be an inch higher than the rear because of the relocated spring mount. So should I buy 3" springs for the front and 4" for the rear? Would 3" springs be enough to clear the 37s? I can trim the fenders if I have to but I'd like to avoid it if possible. Looking for any kind of help here, thanks!