Are Dexter ABS Brakes For 3,500lb Axles The Same Fitment As 4,00lbs Axles?

Question

Question:

I have a tandem-axle camper with Dexter Tow Assist, need to check axle tag if it's 3,500 lbs and the other 4,400 lbs. Are the 10inch ABS brakes the same?

asked by: Brian

0

Expert Reply:

Good eye, Brian - both the 3.5K # DX73WR and 4.4K # DX83WR Tow Assist brakes are 10 inch x 2-1/4 inch, but they’re not interchangeable. The 3.5K version uses different mounting offsets and lighter components for smaller spindles, while the 4.4K version fits a heavier hub and uses a slightly different bearings.

If one axle tag shows 3,500 and the other 4,400, replace each axle with the matching rated assembly so the ABS sensors read correctly.

Are you planning to replace all four at once, or just service one axle right now?

expert reply by: Andrew N

0

Brian

11/3/2025

Thanks, Andrew. I pulled the tags again and looks like both axles are actually 3,500 lbs after all - must’ve misread the first one. Glad to know they match now. I’ll be ordering the #DX73WR assemblies for both axles.

Andrew N.

11/3/2025

@Brian Nice catch, Brian; that makes things much simpler. It would've been really strange if someone swapped in a different capacity axle, but I've seen it before! If both axles are confirmed 3.5K Dexter Tow Assist, then the # DX73WR assemblies are exactly what you need. They’ll bolt right up to the 4-bolt flange and plug into your existing ABS harnesses without any modifications. Since you’re doing both axles, that’ll keep the braking force and sensor readings balanced across the system. After you install them, power up the trailer and look for that solid green Tow Assist light - that’s your sign everything’s synced. Let me know how it goes once you’ve got them mounted! You'll need to follow the break in procedure of getting up to speed then breaking hard to a stop a few times then cool the brakes off, and they'll be broken in!

Answer 1

Hey Mike. The Deutsche Hydrapro Alpha G-1600 item #DH94FR and the DeeMaxx Alpha G1600 item #DE47SR have different fittings on them. The DeeMaxx actuator item #DE47SR has a brass fitting/valve that connects to the main brake line, whereas the Hydrapro…

view full answer...

Answer 2

The brake caliper mounting bracket that comes with the Titan Premier Disc Brake Kit part #T2HRCM10DAC has a standard four bolt brake mounting flange pattern. This pattern is an industry standard so as long as you have the four hole pattern there will…

view full answer...

Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 4

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

view full answer...

Answer 5

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

view full answer...

Answer 6

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

view full answer...

Answer 7

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

view full answer...

Answer 8

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

view full answer...

Answer 9

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

view full answer...

Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

view full answer...

Answer 11

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

view full answer...

Answer 12

The Dexter Nev-R-Adjust electric trailer brakes can be manually adjusted. There are a couple teeth of the adjustment wheel that are exposed just under the lever that you referenced. I have attached a photo showing the teeth. You will likely need a…

view full answer...

Are Dexter ABS Brakes For 3,500lb Axles The Same Fitment As 4,00lbs Axles?

Products Featured in This Question

Product Page this Question was Asked From

Featured Help Information

Instructions

Continue Researching