[JM 35 Sedan]

37 truck, I ran Diamondback 5.50R-16's front and 7.50R-16's rear for several years on my 35 fordor sedan with totally stock suspension including the original height. I ran this combo at least 12,000 miles, that included a 7200 mile crosscountry trip in 2013, with no real problems. Although when I removed them in 2014, I did notice there was just a very slight kiss of a rub between rear tires and inner fender panels, that probably occured while traveling some rough terrain or hitting some heavy bumps or deep potholes.

Edit: This doesn't address your question on the Coker Excelsior brand tires, but maybe helps some on your decision between 7.00 vs. 7.50 rear tire size. BTW, I paid a lot less for these Diamondback radials than Coker is asking for their Excelsior brand radial tires and IMO these Diamondbacks look as good as the Excelsior or maybe even a little better.