Join Date: Jun 2016
Location: Orange County, CA
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
Your bus is NOT a Crown. Crown went out of business in 1991, and some of their tooling and designs were sold to Carpenter who disingeniously used the "Crown by Carpenter" name on their buses. Those buses have NOTHING in common with Crowns except their name. Sorry!
R&R-ing a radiator is more grunt than subtlety. When I recored my radiator the hardest part of the job was finessing an 85lb slab of fragile fins and tubes out of and back into a very tight space for it - a small car jack was useful to hold it while the mounts were not secured. It's probably easier on a FE bus than mine. While the radiator is out, also check the fan and its clutch (it's a lot easier to replace them at that time), and replace any iffy-looking hoses and the thermostat. If in doubt, replace everything!