I just don't think a tow dolly's place is towing a ~4000 (or more) pound, Short WB, high CoG vehicle with a locker. Tow dollies are great for cars. Having a trailer even behind a smaller truck is giving you some safety back. they track better, and having 8 brakes is better than 4. The cost for a tow dolly is not that much less than a trailer, so why use a dolly instead of a trailer?
And don't get me wrong, a 3/4 ton diesel is great, but a 1/2 ton fullsize is twice the tow rig that a smaller truck is.
I didn't miss where you said it was a slow ride, but I was doing 55 at the time the pileup happened.. traffic was moving at about 65..
A 100 isn't a half-bad occasional tow rig either, I went for a few hours through the rolling hills in Texas with one pulling a FJ55.. on a trailer.
I guess my main point is, trailer vs. dolly. when you're towing a 4000lb FJ on a 300lb dolly with a 5000lb vehicle, You've got 9300lbs trying to be stopped by the same brakes.. That's 2325 lbs per brake. Add a trailer in the mix, now you've increaed the weight by 12% to say 10,500 lbs, but you've doubled the brakes, making each brake have to slow only 1312 lbs. SOME tow dollies have surge brakes, which are OK, but not nearly as good as an electric brake setup with a controller.
No matter what tow vehicle you have, that's a better bet in my book, and you're buying yourself some safety back.
(The guy I bought my trailer from sold the trailer to get a dolly, which cost every bit as much as what I paid for the trailer ($1400) once ha added in the brakes and all that. He sold the trailer because he wanted to reduce the amount of weight being pulled by his 1/2 ton.. he regrets the decision, and wants the trailer back.. That's real world experience between a dolly and a trailer, with the same tow vehicle and load. He's pulling a Jeep TJ with a detroit in the rear.. a very similar load to a FJ40, whether we want to admit it or not.)
Besides, in Worldcruiser's case, he's got 8 vehicles in his sig.. why not add a tow rig and trailer?
