What about moving the two trailer axles forward. Wouldn't that move some of the weight off the pin?

 

I was running a similar set up but with a camper and my rear axle weight was 6100 lbs depending on the crap in the camper. How far do you plan to tow this rig, how many times, is your truck paid for, do you plan to update the trailer soon, and do you both commute how far daily. What is the cost of a commuter vehicle vs the loss and depreciation to get a different truck? Insurance, cost of purchase and operating for the second vehicle? The trailer was engineered and built for 2 axles with a pivot point in the center of the tandems. Tri-axles are engineered so the pivot point point in the center axle which means adding an axle is a lot more work than gluing on another set of spring hangers. I made the same mistakes, bought a truck which was under-rated for the tasks I was doing to make it more convenient for my wife who never would drive it. In the end upgraded to the dually with the 6spd and never looked back. Bought her a Mitsubishi Outlander with 2ws,4wd,Awd, 35 mpg an awesome automatic trans with 10 year warranty. Life was good but lesson learned there is NO ultimate combination of tow vehicles and trailer to do everything. Wife is happy.......I can live with some shortcomings on the other end like new tires X 6 on a paid for truck.

 

Well the cost of switching to a different truck would be negligible as whatever I sold this truck for would be what I would spend on a SRW. I'd probably get an 03-04 again.

Also in the summer I have to drive the truck a lot to work as I have a small side business cutting grass. I tow a small trailer with me to my day job 3-4 times a week and then go cut grass after work. I know that there is no perfect commuter/tow vehicle but right now it seems like I spend 80% of time in the dually cursing when I'm driving in traffic and 20% of the time loving it. Seems I'd be happier if I had something more daily driver friendly but it still has to be safe to tow my big trailer.

I see lots of SRW 3500s towing big loads so I know its feasible but I defiantly don't want to make the mistake of going to a SRW and then finding out it won't work.

 

Do you have a buddy with a SRW and goose neck hitch?

I'm betting if you try it, you won't want to be getting rid of the dually unless you also get rid of the trailer.

You could also consider down sizing if you go SRW... Maybe a pop-up pickup camper and a tow trailer for the toy?

 

The weak part of the trailer is the tires your axles sound fine at the weight you mention (just keep them greased and the brakes adjusted).. do a Google on 17.5" trailer tires/wheels they can support the weight you need.. Like the others mentioned put some f or g's on the truck as well..

 

Don't really need to go to 17.5 rims on the trailer as I can get 16" tires in G rating that would fit the bill. It more how stable a SRW will be with that mmuch weight on it, even with G rated tires....