How to Pick the Correct Brake Assemblies and Bearings for 2006 Forest River Grand Surveyor Trailer

Question

Question:

I would like to buy trailer brakes and bearings from your company, but I want to make sure I buy the right ones. My trailer is a 2006 Forest River Grand Surveyor GS240BH. It has two 3500 pound Alko torsion bar EZ lube axles with 10” brakes. Based on my research on your site and the very helpful questions and answers, I am pretty sure that it would take the standard Dexter 10” brakes, part numbers 23-26 and 23-27, nuts 6-17 and washers 5-8. I have never done the bearings myself before, but the shop that replaced them a couple years ago recorded the bearing kits as part number 50246 1 and 3/8inch X 1 and 1/16 with bearing numbers L44649 and L68140 on my invoice. Based on the size, I’m pretty sure that was a mistake and they meant to record L44649 and L68149. They have also used seal number 5604 over the years. So, I’m pretty sure that your complete set BK2-100 would work, and the double lip seals would be the 10-19 or part number RG06-050. I also believe that replacement caps for the EZ lube spindle would be part number RG04-040. I would appreciate it if you could confirm these part numbers for me. Also, can you tell me if part number 290-991 works on the EZ lube caps, or does it only work on the basic caps the write-up on your web-site only lists the regular caps?

asked by: Darryl L

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Expert Reply:

If you have 10 inch brake assemblies currently the # 23-26 and # 23-27 would be the correct assemblies to get. You might measure the bolt assembly that the brake assemblies mount to. The # 23-26 and # 23-27 has bolts holes that are 2-7/8 inches apart on center.

Since you are going to have to remove your hub and bearings anyway I would recommend you just remove them now to verify the bearing numbers that you would need, the numbers of the bearings will be stamped on the bearings. If you find that you have all the same components as the Bearing Kit # BK2-100 then I would recommend it for you. The Seal # 10-19 that comes in this kit is a double lip seal.

The Grease Cap # RG04-040 that you referenced most likely would work for you since typically these caps are on 2,000 and 3,500 lb axles. You will still want to measure your hub to be sure though. The product has an outside diameter of 1.98 inches.

I attached a video on trailer hub removal and inspection that you might find helpful also.

expert reply by: Jameson C

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Answer 1

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Answer 2

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 3

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 4

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 5

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 6

Good morning, Cliff. As of today (3/27/24) we are expecting the #KE33JR tire/wheel combo to be in stock in about 2 weeks. Hopefully this means we can take our own pictures and put them on the site within maybe about 3-4 weeks from now. What I can…

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Answer 7

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 8

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 9

You can add larger wheels and tires to a trailer as long as you have enough room for the larger size. The main clearance issues we find when putting larger tires and wheels on a trailer is from the top of the tire to the fender and from the inside…

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Answer 10

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…

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Answer 11

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 12

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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