Concur with Jerry. Are these triple axles "Mobile Home" axles (single wheels) or dual wheels? And what kind of load are we talking? Tractors and backhoes run a wide range of weights. We have a tri-axle trailer at work that's a pintle hitch, 25-ton capacity and it is air brakes on all three axles. Our backhoes run about 15,000 lbs and we (me!) only move them on air-brake equipped trailers. All 3 of our backhoes are Case 590 Super L's and I don't like moving them on pintle trailers. I prefer using the 18-wheeler. Speaking of tri-axle trailers ... My favorite trailer to use is a 50-ton capacity Removeable Gooseneck trailer I use to move our heavy equipment
If your trailer is a shop-built unit on mobile home axles ...
You might want to
check out this thread on a different forumBottom line: Your brake controller should have come with wiring instructions. If it didn't, you should be able to get a model number off it and find it on line.
I put a hitch and an electric brake controller on my '65 GMC 4400. It was pretty straight forward. But it was a smallish car hauler trailer rated for 7,000 lbs. And brakes on only one axle. Braking with that kind of set up was iffy in some situations and I have since upgraded to an aluminum trailer with 5,000 lb axles and e-brakes on both axles.
