Why Does Bolt Pattern Matter When Choosing Disc Brakes

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Question:

what size are lugnuts what thred

asked by: Billy G

1

Helpful Expert Reply:

The reason that it is important to note the bolt pattern (along with the bearing sizes) is exactly that; to make sure that your current wheels fit properly on the Disc Brake Kit # T4843300.

You are correct that a 5 on 4-1/2" bolt pattern is actually the better route to go. It is more common and will be much easier to replace than a 5 on 4-1/4" bolt pattern wheel. As long as your inner bearing is # L68149, your outer bearing is # L44649, and your grease seal has an inner diameter of 1.719" this will work well for your application.

If you let me know what size tires you currently have I would be happy to make a recommendation from the linked page that has 5 on 4-1/2" tire/wheel combos.

expert reply by: Jon G

1

Billy G.

7/12/2018

It currently has 205-75-14 and they do not seem strong enough for 2500 LB boat, they look like the tire is low. but I'm at recommend tire pressure for tire. I was hoping to go with 225-75-15, and a better brand. Thanks

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Jon G.

7/12/2018

Since you are changing out your hubs for a different bolt pattern you will need new wheels as well. Typically for boat trailer applications we recommend going with a galvanized wheel like what comes with the Karrier ST225/75R15 # AM32468, but we actually have a better option that is similarly priced. For your boat trailer I recommend going with the Aluminum Trailer Wheel # AM20518 and th Castle Rock ST225/75R15 # 274-000029. The Aluminum wheel which has the best rust resistance out there. This combo has a weight capacity of 1,820 lbs (so 3,640 lbs per axle), has a speed rating of 75 mph, and comes with the Lionshead Roadside Assistance Program. This complimentary roadside assistance for 2 years. If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.

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Billy G.

7/26/2018

what size are lugnuts what thred

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Jon G.

7/26/2018

The correct lug nut to use for the aluminum # AM20518 is a 1/2" - 20 with a 60-degree cone shaped end. You can find this with part # LHLR103 on our site. The 1/2" is the bolt size while the 20 stands for how many threads per inch it has.

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Answer 1

The 4-bolt brake mounting pattern is fairly rare in a 12 x 2 inch assembly. We have some options though; for 6K axles we have #23-105-09 for the left and #23-106-09 for the right. The 4-bolt pattern on these assemblies is offset meaning the bottom…

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Answer 2

The best way to determine which hub assembly you will need is by the bearing numbers. The item you selected, Trailer Hub Assembly, part #8-258-5UC1, is a replacement hub which uses Inner and Outer Bearing #L44649. The bearing numbers will be…

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Answer 3

For the LCI52-SB-86.5-68.5, the two ending measurements are: 1st - measurement from hub to hub, meaning the length of the axle in this case is 86.5 inches. 2nd - spring seat dimension where they're welded, meaning the spring seats are 68.5…

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Answer 4

I am not sure which replacement braking assemblies you need for your trailer but this is pretty easy to find out for yourself. The only thing you need to do is crawl under the trailer and try to find the white axle sticker which should display…

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Answer 5

In order to verify the spindle dimensions so that you can pick out the correct hub/drum you have to get exact dimensions. For that you need to use a digital caliper like part #PTW80157. For how old your trailer is this is especially important as the…

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Answer 6

You will want the Replacement Brake Spring Set for Dexter 10" x 1-1/2" Electric Trailer Brake Assembly #K71-362-00. Then you will want the Replacement Trailer Brake Magnet Kit for 7" Brake Assemblies #BP01-068 due to the thinner hubs…

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Answer 7

The grease seal part number #168255TB that you referenced matches the dimensions of the grease seal you are looking for so it would work well for you.

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Answer 8

We recommended to repack the wheel bearings on your trailer every 12 months or 12,000 miles. There is not a specific guideline as far as actually replacing the bearings. When repacking them with grease, you will also just want to check for any damage…

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Answer 9

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 10

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 11

If your old axles have a 5 bolt brake flange the assemblies like Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs part #23-105 or Dexter Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs part #23-106 will…

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Answer 12

Since Demco uses 3,500 drum brake assemblies part #DMSB24429M and #DMSB24428M what you'd need is similar 3,500 electric brake assemblies like the etrailer part #AKEBRK-35L-SA for the left hand side and #AKEBRK-35R-SA for the right hand side. To…

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Why Does Bolt Pattern Matter When Choosing Disc Brakes

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