This is long overdue but I finally installed the ECE suspension I've had in the garage for about 4 years
Here are some details:
ECE 4.5/6 drop with drum to disc conversion with (2.5" drop spindles and 2" drop springs) Rear has 6" drop springs, shock relocator kit, and super track bar kit. It's frustrating that they are unavailable for support as a number of small parts were missing (banjo bolts, prop valve mounting kit and lines, dust caps, etc.).
Tires are 255/55R18. I have since put different Nitto NT421Q tires on but no pictures yet. Wheels are Eagle Alloy 146s I'm guessing BS is 4.5 or 5.5. While the tires fit with very little clearance, I'd suggest a shorter tire.
Overall it's riding really well but the brakes are dragging so I'll need to figure that one out.