Do Electric Trailer Brakes With Parking Brake for 6k Axle Work on 7k Axle

Question

Question:

I want to setup a 7k axle with electric brakes and parking brake. This is for an axle swap on an M105. Parking brake is critical. I have already reviewed your response to the question Adding Brakes vs. Replacing Axle on M105 Trailerinch but it does not address the parking brake issue. From what I can find, the electric brake with parking brake for the 7k axle does not exist. Will the 6k electric brakes with parking brakes bolt on to the 7k axle? Would these be a better solution vs going with a 6k axle in terms of total strength, etc...? Assuming the above assembly is possible, is it less expensive to get the 7k axle beam and add the hubs and brakes, or is it less expensive to just buy a 7k complete axle assembly and swap in the 6k brake assemblies with parking brake Thanks!

asked by: Judah H

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Expert Reply:

So long as you have a standard 5-bolt mounting flange on the axle such as the Brake Mounting Flange for 3" Round Axle # 4-44-1 you can use the 6,000 lb Dexter Electric Trailer Brake Kit with Parking Brakes # 23-112-113.

You will also need to have a 12" diameter x 2" wide drum for the brakes to fit in, and if you have those things, you can use these 6k brakes. You will also need the Mounting Bolts and Hardware for 12" Brake Assemblies # BRKH12.

As for the price, that really depends on the exact set up you get, but is likely less expensive to go with the parts separately, like the brakes with an axle such as # 8327864 and hub # 42866UC3-EZ.

expert reply by: Kyle S

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Answer 1

Double lip seals are better in every way than single lip seals so we always recommend them. For example, the part #RG06-050 is the correct double lip for use on a 3,500 lb axle where the #L44649 is normally used.

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Answer 2

The Dexter 6K and 7K axles are very similar to each other, so it can be difficult to determine their capacity just by looks. Dexter axles typically have a specs plate near the center of the axle, but there is a chance that it could have come off. The…

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Answer 3

Actually for a 6k rated Dexter 12x2 brake assembly you would want the part #23-459 for the right hand side and part #23-458 for the left hand side. Then for a 7k rated assembly you would want part #23-465 for the right hand side and part #23-464 for…

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Answer 4

A drop axle certainly can make it tough to reach the star wheel adjuster on a drum brake. The adjuster spoon tool we offer #W80630 has a 90-degree bend that will often let you get access to the adjuster even on a drop axle. Essentially you will need…

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Answer 5

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.

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Answer 6

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…

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Answer 7

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 8

Based on the GVWR of your 2019 Jayco North Point 315RLTS it does seem like you have 7k axles. I recommend verifying this information to be sure. These axles typically use the #14125A outer and #25580 inner bearing found in the Timken #TMK92VR.…

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Answer 9

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 10

I currently have three diffrent self-adjusting assemblies for your boat trailer with 10" x 2-1/4" electric drum brakes which are attached for you below. eTrailer Electric Trailer Brake Kit part #AKEBRK-35-SA (3,500 Axles) Dexter…

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Answer 11

Hey Dave, what you gave me is enough info to get you replacement bearings. The grease seal 471750 matches the part #TMK48ZR. For a Timken replacement for the L44610 part number you'd need #TMK63VR. Then for a bearing for the L44649 you'd want…

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Answer 12

The recommended lug nut torque for your 7,000lb axle depends on a few factors like wheel size, stud size etc. Check out the attached photo which shows the torque specs for a variety of applications. I see you were looking at the Dexter Nev-R-Adjust…

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