Brake Shoe Thickness and When to Replace Dexter 3,500 Brake Pads

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Question:

How to tell if brake shoes need replacing

asked by: David G

1

Helpful Expert Reply:

I went out into our warehouse to measure the pad thickness of a Dexter 3,500 10 by 2-1/4 inch brake assembly like the part # 23-468-469 and just the brake pad portion of the shoe measured .18 of an inch.

The entire shoe thickness was .29 of an inch and the metal portion of the shoe measured .11 of an inch. Dexter says they need to be replaced when the pad material gets down to 1/16 of an inch (.0625) or less.

expert reply by: Jameson C

1

Answer 1

On Dexter 12" Nev-R-Adjust Electric Brake Assembly #23-458 the shoe pad thickness is 3/16 of an inch. Dexter says that you should replace the shoes if the material gets down to 1/16 of an inch thick or less.

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Answer 2

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen on…

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Answer 3

That number is probably 4 mm which that amount is acceptable. Normally trailer brake thicknesses are done by inch though. 3/16 of an inch is what they are new and then they should get replaced at 1/16 of an inch.

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Answer 4

We have the bearing kit part #BK3-100 that is designed for Dexter 6k trailer axles like yours. This comes with new bearings and a seal. I attached an install video that shows a trailer hub getting rebuilt for you to check out as well.

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Answer 5

It is possible that you have single lip seals and need to replace them with double lip seals to avoid the grease leaking from the back of the hub. A double lip seal will have a stronger seal for EZ lube spindles such as #TRU74FR. The force of the…

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Answer 6

If you have grease coming out the rear seal, you have a bad seal or the incorrect size seal size. The EZ lube spindles will allow you to see grease out the front with the rear seal intact if your seals are working properly as you stated. I've…

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Answer 7

It sounds like your problem may be that you are installing too much grease into the hubs and that is why they are blowing out. If you are pumping your grease into your hub with a grease gun you should note that you should only continue to add grease…

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Answer 8

Are there any visible signs of wear on the magnets like exposed windings then that would indicate they need replacing. Magnets can go bad without showing visible signs of wear though. To see how to troubleshoot them check out the help article I…

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Answer 9

I spoke to my contact at Timbren and he said that their Axle-Less systems like the part #A35RS545E that you referenced does have the ability to be aligned. It comes with shims that allow you to make small alignment adjustments.

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Answer 10

In order to determine the correct replacement braking assemblies for any given trailer you must first know the axle capacity. I am sure we have the correct replacement braking assemblies but in order to confirm we again need to know the axle…

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Answer 11

Basically every company who makes trailer brakes has their own brake magnets. Dexter is one of the leading manufacturers which is probably why you have found a lot of their stuff. Attached is a link to our selection of brake magnets for you to filter…

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Answer 12

The brake pads on the 12" Dexter Electric Drum Brake Kit #23-180-181 are 3/16" thick. Dexter Axle recommends replacing them once they get down to 1/16" thick.

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Brake Shoe Thickness and When to Replace Dexter 3,500 Brake Pads

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