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Old 11-08-2009, 09:31 AM   #1
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Surge AND Electric brakes on a utility trailer?

a friend has a dual axle utility trailer that has surge brakes on only one axle. he'd like to add brakes to the second axle because he'd like brakes while backing downhill. it seems that is has been done in the past.

while doing some searching on the topic i came across a 1969 article in popular science with an Airstream in it!

Google

does anyone have any experience with this?
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Old 11-08-2009, 10:08 AM   #2
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Originally Posted by richinny View Post
a friend has a dual axle utility trailer that has surge brakes on only one axle. he'd like to add brakes to the second axle because he'd like brakes while backing downhill. it seems that is has been done in the past.

while doing some searching on the topic i came across a 1969 article in popular science with an Airstream in it!

Google

does anyone have any experience with this?
It's not a problem to add, "IF" there is a backing plate (brake assembly) mounting bracket on the non-brake axle.

There are 2 types. A square bracket that has 4 mounting hole, is for 10 inch brakes.

A round bracket with 5 holes, is for 12 inch brakes.

Next item to identify, is the number of the inner and outer bearings.

Lastly, how many mounting holes do the wheels have.

With all of the above information, the brakes and hub and drums can be properly obtained.

If the axle "does not" have that bracket, then your friend is sort of out of luck, since that bracket is welded into place with extreme precision, and is not likely to be properly located by hand.

Andy
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Old 11-08-2009, 10:13 AM   #3
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We too...surge! The conversion would be electric disc?

The way ours is set up you must be connected or the brakes will engage when put in reverse.

Our BT.... two axle's, rear axle only with disc bks......BUT a very light rig, boat and trlr together less than 2500# two plates is plenty!!
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Old 11-08-2009, 03:14 PM   #4
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andy, thanks. i've done some preliminary searching to see what would be needed but i held off to see if the idea was bad. i guess replacing one axle, drum to drum, would work too. i'd like to match the bolt patterns if possible.

no discs as this is for non highway use and it sits unused for long periods. the surge brakes activate when backing level or uphill. when backing downhill, the trailer pulls the tow vehicle without any braking from the trailer! i guess that explains some of the launched vehicles i'd heard about at the boat ramp ;-)
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