Spindle Replacement Recommendation For Donahue Horse Trailer

Question

Question:

I am need of a spindle for: Donahue Horse Trailer, Model SS-712-Pin, GVWR 8092 lbs @ 55MPH w/13.5, GAWR 2 @3500 w7Dx15lrd @ TIRES 60psi, mfg 9-98. spindle is round, and the entire axle is welded to the frame. Do I need to replace the entire axle? Your assistance would be appreciated. Thank you

asked by: Janice K

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Expert Reply:

In order to make sure you get the right components for your Donahue Horse Trailer, we will need some more information. If you are wanting to replace the spindle, the first thing you will need to know is the weight capacity and dimensions of the axle you plan on using the spindle on. Please keep in mind that installing the spindle require welding it to the axle by a certified welder. They use special jigs so that it is concentric and square on the axle or it can cause problems with uneven tire wear and wheel tracking.

I have attached a helpful article about trailer spindles you can check out. You will need to take some measurements on the spindle you currently have with a precision instrument like a digital caliper, to make sure you choose the correct replacement.

If you have 3,500 lb axles on your trailer and it measures 1.75 inches diameter, we have 3 spindles that may work for you. They are as follows:

#84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter (8-1/4" OAL) # TRU64FR
#84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter (9" OAL) # TRU74FR
#84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter (11-1/4" OAL) # TRU84FR

The bearing kit for these spindles is part # BK2-100. The kit includes the bearings and races, grease seal, washer, and cotter pin.

If you decide you want to replace the axle or axles entirely, and need 3,500 lb axles I recommend part # e43SR. These axles have a 4 bolt mounting flange for the brakes, included, and hubs with 5 on 4-1/2 bolt pattern. The measurement hub face to hub face is 89 inches. Spring center to spring center they are 74 inches long. I have attached a link to a video review of this axle you can take a look at.

expert reply by: Jeffrey L

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Answer 1

The Dexter Electric Trailer Brake Kit #23-180-181 (7,000 lbs.) and Dexter Electric Trailer Brake Kit #23-105-106 (6,000 lbs.) are both 12" x 2" brakes so they are interchangeable, but they have different axle ratings. The #23-180-181 is…

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Answer 2

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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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.

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Answer 4

While we may have an option for you, we do not have the exact specs on your Allis grease seal part number 5013 29772. However, with the 1.6" ID and 2.5" OD measurements you provides, that is very close to our #58846. This particular grease…

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Answer 5

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 6

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit you'd want would be the part #APUBR-8. I attached the diagram to use…

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Answer 7

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 8

The correct replacement for a Demco Master Cylinder 05680-C is the Replacement Master Cylinder part #5650. I spoke with Demco to confirm this for you.

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Answer 9

The old version of the #HBA-CAM used 4 wires, but the product was updated awhile back and now uses only two wires as shown in the photo on the product description page. The white wire from the HBA-CAM would tap into the white ground wire and the blue…

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Answer 10

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 11

The 7290 that you see is a casting number. It is found on AL-KO hubs that fit #99 spindles. I found that the bearings used are #28580 which would be the inner bearing and #25580 which would be the outer bearing. For the seal use #91030.

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Answer 12

On a 2005 Chevy Silverado 1500, If you are facing the front of the truck looking at the power distribution box, there will be a post at the back left side and a fuse slot near it. It is that fuse slot that you will install a 30 amp fuse. I have…

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Spindle Replacement Recommendation For Donahue Horse Trailer

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