Originally Posted by RogerDat
His explanation is lacking detail but essentially correct. Any Dexter axle over 2200 lbs. is the same axle (as far as the metal goes) as a 3500 lb. axle.
... Above 2200 lbs. you need a bigger axle tube to have enough rubber, the next size bigger tube can hold enough rubber to go up to 4000 lbs. (but 3500 is a more typical trailer weight which is probably why he calls it a 3500 lb. axle)
Above a certain weight rating the axle would have to have brakes
, so he is saying the only reason that Dexter makes them with a reduce the weight rating (less rubber) in the 3500 lb. axle is so brakes
are not required.
BTW - reducing the suspension rubber is often called "de-tuned" or "detuned" I ordered a 3500# axle detuned to 2500#.
I agree with what Roger is saying. I'm a little confused over the 3500 and 4000 Lbs. only because I think Dexter may have changed their specs for a #10 axle. Unless my memory has failed me, the #10 used to go up to 3500 Lbs.
Yes, utility trailer guys are often concerned about axle capacities and brakes
. Over a certain limit utility trailers need brakes that have to be inspected annualy, at least here in Ontario. The trailer guy that did mine found out that while doing mine that campers are exempt. I think I helped him out on that one. You might want to look the rules up for SK.
So when it comes to 2200 lbs and 3500 lbs axles they are slang or trade type terms. I think I can explain it using Ford Pickups since they have not changed their numbering for years. The terms F150, F250 and F350 have been called 1/2 ton, 3/4 ton a 1 ton pickups for decades because that is the approximate payload they can carry(forgive me if I got the numbers mixed up, I'm trying to do an analogy). GM and Dodge have their own numbers for the same classes of trucks and vans.
In each class of truck, the towing capacity differs based on options such as cab type, rear end, brakes and engine. Same truck different components.
In each class of axle, the amount it is designed to carry depends on the length of rubber installed in the axle. Same axle, different components.
Hope that helps. I agree with Roger. If your choices are limited, don't burn your bridges.