Thanks for all the advice, everyone. I replaced my old axles with the new ones today. It took 6ish hours--only had a helper for an hour or so of it, so it was slow going. As many here have reported, I did need to drill out the rear most lower hole on the new mounting brackets, as they didn't align with the old ones. All the others lined-up great. I also swapped out for some new Monroe shocks, as my old ones were shot.
I haven't had a chance to drive it yet, but I'm sure it'll be great. I did order a modest increase in weight rating for each axle, and went to a 32 degree angle. My old axles were shot enough that the arms rested at close to a 20 degree up angle! Sitting on these new ones, my trailer is at least 3" higher overall, which I'm very happy with--actually need the second step on my front door for the first time
. I was completely satisfied with my experience ordering from Colin Hyde, and looking forward to many more years in my '86 32' excella.
Roll on!
Stephen