Trailer Brakes really necessary??
I've towed with a Lightning, my 99 Tahoe and rode in other trucks and I would not tow in my Tahoe without brakes. If you get an F150 I would install electric brakes.
Just my .02
Ken
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In fact, here in Florida, any trailer over 3000lbs (any open trailer with an F-body on it will go well over 3000lbs) is required to have brakes on at least one axle. It's a no-brainer, since it shouldn't cost but an additional $150 or so over no braking axles...
Daren
Most 16-18' open trailers are over 2000lbs with a full diamond plate floor, my old 18' with a full floor was 2100lbs. I have one of the lightest steel open trailers you can get and its still 1700lbs, I wanted a full floor but at 5000lbs with the car I was getting too close to the tow rating of the truck. Aluminum trailers are lighter but double or triple the price. Also make sure and buy a trailer designed for hauling a car, with at least one removeable fender. With a lot of utility turned car trailers you wont be able to open your doors and that sucks.
My first open trailer like 20 years ago sucked as far as the electric brakes went and it had the controller tied into the hydraulics, it wouldnt lock the brakes in a gravel parking lot and you could max the lever on the controller and you would barely feel it slow down on the highway. Next couple had surge brakes which are great in theory but never seemed to work right, not to mention you have no control over them. All my big enclosed trailers were electric except for a 45' 5th wheel chaparrel that had some goofy vacuum/air/hydraulic mess that never worked right and eventually converted it to electric.
Last edited by kp; Jun 5, 2004 at 12:38 AM.

The other thing about the 3/4 ton truck was the upgraded transmission. 4L60E vs 4L80E. No brainer there.
I don't know how Ford sets up their trucks tho.And at somewhere around $75-125/axle for electric brakes installed, it's cheap enough... why not. I definitely notice them helping. I went with both axles getting brakes.
My first open trailer like 20 years ago sucked as far as the electric brakes went and it had the controller tied into the hydraulics, it wouldnt lock the brakes in a gravel parking lot and you could max the lever on the controller and you would barely feel it slow down on the highway. Next couple had surge brakes which are great in theory but never seemed to work right, not to mention you have no control over them. All my big enclosed trailers were electric except for a 45' 5th wheel chaparrel that had some goofy vacuum/air/hydraulic mess that never worked right and eventually converted it to electric.
The old controllers were rather course. The KH one, IIRC, had a band that shorted out turns of the thick Nichrome wire resistance coil. They had a patent, so others used half a dozen pins that contacted the coil, which was even more coarse than the KH. The first decel sensitive one I saw used a weighted flap that would swing through an optocoupler and vary the freq of a 555 timer. It did not work much better than the mechanical ones as far as smoothness. Another problem is the gain in the brakes themselves. Depending on the magnet, the armature material, the lining material, and shoe design, you would sometimes have 50% of the braking power at the minimum amperate you could deliver. That felt good unless you were on gravel.
The surge brake seems like a good idea but it has a fatal flaw. It works by a lack of braking on the trailer. The tounge is articulated and has a master cylinder inserted. So you hit the brakes on the tow vehicle and the trailer pushes against the tow vehicle, through the master cylinder, which applies the trailer brakes. But, obviously applying the trailer brakes reduces the force on the master cylinder and thus the pressure to the trailer brakes, which reduces their effort. At some point the system balances, but it should be pretty obvious that you can never get very near having trailer braking that actually handles the weight of the trailer. You need a tow vehicle with good enough brakes to handle, say 80% of the trailer weight. If you run the system gain up trying to increase the effectiveness, they get jerkey, and in any case you can never approach full braking on the trailer (ie, the trailer brakes handling the weight of the trailer so no extra load is imposed on the tow vehicle) as that leaves zero force at the tongue to generate hydraulic pressure to drive the brakes.
The electronic ones can't sense inertia, but they can sense acceleration (or deceleration). That is how all the ones I have seen worked. However, they have the opposite flaw than the surge brake. In this case, trailer braking increases deceleration, which applies more trailer brakes, which produces more deceleration, ad nauseum. The only way they can work at all is if the system gain is low enough to prevent lockup, which again means that they can never handle a significant portion of the trailer weight.
I did design andd prototype an electronic controller that used a pressure transducer hooked into the tow vehicle hydraulics. It worked quite well, but we could never source an inexpensive enough transducer to make the thing viable in the marketplace. Today, with the silicon sensors, it could probably be done but might be a hard sell against the "clean installation" if the non-hydraulic connection controllers. I also designed and prototyped an electric disk brake that suffered the same problem - economics.
Bottom line back then was that you had better have a tow vehicle that had surplus brake capacity and drive carefully, leaving plenty of room to stop. It sounds like that is still true.



