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Author Topic: Car dolly brakes  (Read 452 times)

chaz1040

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Car dolly brakes
« on: September 04, 2017, 02:40:22 PM »
I have a 2002 Gulfstream 40 foot DP with air brakes. I am looking at buying a car dolly to tow my Hyundai Elantra, which has a curb weight around 2,700lbs. Do I need a car dolly with its own braking system or will the motorhome handle the extra load?
2002 Gulfstream Friendship 40' DP
Full-timing since Feb 2015

Wasoki

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Re: Car dolly brakes
« Reply #1 on: September 04, 2017, 08:50:39 PM »
A dolly with brakes is no that much more than one without,  cheap insurance.  Requirements change from state to state, so  it may also depend on where you live or travel.

The car is light enough that you might be able to get by, but I wouldn't try it.
Jim Sullivan
Newmar Canyon Star 3710
WASOKI
(We Are Spending Our Kids Inheritance)

WILDEBILL308

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Re: Car dolly brakes
« Reply #2 on: September 04, 2017, 10:10:07 PM »
I have a 2002 Gulfstream 40 foot DP with air brakes. I am looking at buying a car dolly to tow my Hyundai Elantra, which has a curb weight around 2,700lbs. Do I need a car dolly with its own braking system or will the motorhome handle the extra load?
Yes you need brakes on the dolly. I have a Acmey with surge disk brakes and it works well.
Bill
2003 Bounder 38N
300 HP 5.9 Cummins
Allison 3000MH Trans.
Towing 2014 Honda CRV
Home base Fort Worth, Texas
A man who carries a cat by the tail learns something he can learn in no other way.
-Mark Twain-

John Stephens

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Re: Car dolly brakes
« Reply #3 on: September 04, 2017, 11:08:45 PM »
I also have an ACME EZ tow dolly for my Hyundai Azera. It's surge brakes proved to be great this past month during our vacation to the Smoky Mountains.

Many states demand dolly brakes, some demand brakes if towing over 2,000 lbs. It will depend on where you live and where you plan on traveling. For peace of mind, I would spend the extra couple hundred and get the brakes.
John

2005 Winnebago Adventurer 38J

satxron

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Re: Car dolly brakes
« Reply #4 on: September 05, 2017, 12:14:43 AM »
Go here and decide if you want to not go to some states because you don't have brakes.

I have surge brakes, it makes it safer and you are legal.

http://www.brakebuddy.com/towing-laws

Gary RV_Wizard

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Re: Car dolly brakes
« Reply #5 on: September 05, 2017, 09:13:34 AM »
Even if the coach has enough excess braking capacity to stop the car & dolly, the stopping distance will ALWAYS be shorter if the dolly has brakes. ALWAYS!  Let's say you are towing a 4000 lb car on a 400 lb dolly. That's 4400 extra lbs that need to be brought to a halt on every stop. That's about 15% extra on a 30,000 lb coach and that extra weight translates directly into increased stopping distance. So do you want to risk an extra 15% is topping time & distance? Cause that's what happens...

Get the dolly brakes!
Gary
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Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

2kGeorgieBoy

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Re: Car dolly brakes
« Reply #6 on: September 05, 2017, 02:31:03 PM »
Trailer brakes are your friend!
2000 Georgie Boy Maverick
31' E450 V10  No slides
our toys:
'08 Polaris Touring LE ATV (mine)
'12 Polaris 550 XP ATV (wife's)
1968 AH Sprite (original owners, not on road at this time)
Gary, Jena, and Presley (our awesome yellow Lab).
Westcliffe, CO.

RVRAC

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Re: Car dolly brakes
« Reply #7 on: September 05, 2017, 10:14:13 PM »
You need one with brakes.
2017 Leprechaun 311 FS
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American Dolly
Home: WI
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sunfighter

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Re: Car dolly brakes
« Reply #8 on: September 06, 2017, 10:01:11 AM »
Oh my God... I'm a criminal and didn't even know it. My tow dolly has no brakes, and I took it to Ca. once. Not only that, but, using this logic, my tow vehicle wasn't Ca. emission certified either, so I guess that makes me a two time criminal. Give me a break.
 
"Leaning in a heavy wind that no one else can feel"

2007 Gulf stream Independence triple slide. and 2005 Gulf Stream Independence triple slide

2kGeorgieBoy

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Re: Car dolly brakes
« Reply #9 on: September 06, 2017, 02:28:08 PM »
The OP was asking a reasonable question and the answers that were given are for him to use or ignore. If you don't like the answers, that is fine or don't believe that safety should always be a consideration, that is fine too. Just ignore the question and answers.
2000 Georgie Boy Maverick
31' E450 V10  No slides
our toys:
'08 Polaris Touring LE ATV (mine)
'12 Polaris 550 XP ATV (wife's)
1968 AH Sprite (original owners, not on road at this time)
Gary, Jena, and Presley (our awesome yellow Lab).
Westcliffe, CO.

glen54737

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Re: Car dolly brakes
« Reply #10 on: September 06, 2017, 03:01:41 PM »
Are they all surge brakes or is electric an option too?
2018 Thor Miramar 35.2
2015 F-350 CC short box 6.7l 3.55 axle
2015 Alpine 3510RE-sold

Glen,Nene
Mickey & Jayco (yorkies)

John From Detroit

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Re: Car dolly brakes
« Reply #11 on: September 06, 2017, 04:30:50 PM »
Yes the OP was asking a reasonable question.

There are two answers.. LEGALLY. it depends on where you live. and I can't give a better answer than that. Some states trailers 2,000 pounds or even lighter need brakes. Some 4,000 or more  And yes a car in tow IS A TRAILER.

Laws of physics.
Now I've had folks argue with me on this. I ALWAYS WIN.. The laws of physics are such that when you "Lock 'em up" (meaning an ALL wheel skid) your stopping distance is set by a mathmatical formula that is the same for ALL vehicles.. Be it a "Smart Car" or "Mini Cooper" or a fully loaded Semi (Though there is one other factor in the semi) This applies ONLY to an all wheel skid however

If you have wheels NOT braking.. the distance an go up. as much (Per US-Gear) as 30%

So you rear end me.. I will be checking your trailer brakes.. Or my attorney will.. That simple.. This applies to at least 59 states (one state I am not sure but believe it will).
Nothing adds excitement like something that is none of your business
My Home is where I park it.

sunfighter

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Re: Car dolly brakes
« Reply #12 on: September 06, 2017, 06:24:26 PM »
There are two answers.. LEGALLY. it depends on where you live. and I can't give a better answer than that. Some states trailers 2,000 pounds or even lighter need brakes. Some 4,000 or more  And yes a car in tow IS A TRAILER. [/quote]

I'll use Ca dmv law as an example.

section 29003   Every hitch, drawbar, coupler or other connection between motor vehicles towing must be securely attached to the vehicle and be strong enough to handle the weight of whatever you are towing.

section 26302   Every trailer over 1500 lbs must be equipped with brakes on at least 2 wheels.
now comes the interesting part...

section 29003-c.   The raised end of any motor vehicle being transported by another motor vehicle using a tow dolly shall be secured to the tow dolly by two separate chains, cables, or equivalent devices adequate to prevent shifting or separation of the towed vehicle and the tow dolly.

Please note that Ca. separates TRAILERS from tow dollys, so in Ca. at least, a car in tow IS NOT A TRAILER
"Leaning in a heavy wind that no one else can feel"

2007 Gulf stream Independence triple slide. and 2005 Gulf Stream Independence triple slide

Gary RV_Wizard

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Re: Car dolly brakes
« Reply #13 on: September 06, 2017, 07:40:56 PM »
Quote
Are they all surge brakes or is electric an option too?

Both types are available, but new ones seem to be predominantly electric brake types. Surge brakes have the advantage of not needing a brake controller, but a good electric brake controller is more sophisticated in managing braking, e.g. on long down grades.  Dolly braking is a pretty simple application, though, and I think surge brakes would do fine.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

John Stephens

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Re: Car dolly brakes
« Reply #14 on: September 08, 2017, 09:42:13 AM »

Laws of physics.
Now I've had folks argue with me on this. I ALWAYS WIN..
So you rear end me.. I will be checking your trailer brakes.. Or my attorney will.. That simple.. This applies to at least 59 states (one state I am not sure but believe it will).

If you think so highly of yourself and your ability to win an argument, please explain how your theory applies to 59 states when there are only 50.
John

2005 Winnebago Adventurer 38J

Ernie n Tara

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Re: Car dolly brakes
« Reply #15 on: September 08, 2017, 05:26:47 PM »
Just a comment and a bitch. Simplistically, braking distance for a tow w/o brakes will be increased in direct proportion to the ratio of weights of the two vehicles! That is is tower weights 20, 000 and towed weights 5, 000 then distance will be 25% longer.  Big difference!

Bitch is that tire compound is a major factor in stopping distance and is not a factor you can know except by inference. A soft sticky compound will have a larger coeficient of friction on asphalt than harder compound and the difference can be hugh; perhaps as high as 40%. Of course it will wear much faster but you can't know this because the tire manufacturer wants to brag about mileage (which of course is rarely a factor for rv's).

Ernie
Ernie 'n Tara

2011 Winn Journey 34y
2012 Jeep Rubicon - Dozer (orange - kinda)
2006 Jeep Wrangler

jubileee

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Re: Car dolly brakes
« Reply #16 on: September 08, 2017, 06:22:29 PM »
Pretty hard to " lock 'em all up" in the days of anti-lock. Anyway, we pull a tracker four down or a Honda occasionally on a dolly. No brakes on dolly. Use Brake Buddy in both vehicles. Works great. It seems that the braking is about the same for normal braking. One or two lights on indicator. With harder braking, I feel the tracker pulling more of course because of twice the brakes.

 

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