As you may recall, I've been complaining that the suspension of my TD is too stiff, the trailer bounces, and we broke a couple of leaf springs 80 miles down a washboard trail in Baja Mexico. I've been theorizing that longer YJ Jeep springs might be the answer. Well, today I took the TD over to Off Road Evolution
in Fullerton, CA and talked with Mel. He is good with off road suspensions.
I have to say I was surprised at his advice (but I like it). He pointed out that you can see almost 2 inches of travel on the shock shaft. It is shiny there. So we would not want to add much more travel or the trailer will be bottoming out all the time. We could use YJ jeep springs, but he's not sure that would be better. Actually, he recommended against that.
Or we could do a spring over axle lift to create more room for travel, but if we make the jeep too tall there is a serious danger of it tipping over or rolling over on the trail. He has seen that happen several times. So he didn't recommend that either.
The best solution is to use bigger tires & lower pressure (especially on the trail). He said no reason not to use the exact same 32" tires on the trailer as the Jeep already has. Might need to raise fenders to make room for larger tires. But it's only three bolts, so no big deal. He also thought it would be perfectly okay to bolt a full-size 32" spare tire to the side of my trailer, since the trailer walls are 1 inch thick plywood.
He suggested a trail tire pressure of as low as 10 PSI in the trailer tires (if they are bigger). And back to the normal 35 PSI when on the highway. Same as the Jeep.
And as for the history of leaf spring breakage.... He said to carry an extra spring! That makes sense to me, so I bought a pair at Carson Trailer on the way home. I plan to find a place to affix it under the TD so I will always have a spare leaf spring.