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  1. Trailer Spindles
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  3. For 3500 lb Axle
  4. Standard Spindle
  5. 1-1/2 Inch Diameter
  6. Square
Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide

Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide

Item # TRU47FR
Retail:$55.59
Our Price: $37.68
You Save: 32%
Trailer Spindles
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Shipping Weight: 4 lbs
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Replacement #84 spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Castle nut, washer, and cotter pin included. Lowest Prices for the best trailer spindles from TruRyde. Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide part number TRU47FR can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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  • Reviews (10)
  • Q & A (0)
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TruRyde Trailer Spindles - TRU47FR

  • For 3500 lb Axle
  • Standard Spindle
  • 1-1/2 Inch Diameter
  • Square
  • TruRyde

Replacement #84 spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Castle nut, washer, and cotter pin included.


Features:

  • Tapered spindle replaces a worn or damaged #84 spindle on your trailer
    • Can also be used to build a custom axle
  • Weld-on installation
  • Sturdy steel construction
  • Castle nut, washer, and cotter pin included


Specs:

  • Application: 3,500-lb trailer axles
    • Spindle capacity: 1,750 lbs
  • Stub dimensions: 1-1/2" wide x 3-5/8" long
  • Overall spindle length: 8-1/4"


Bearing, Race, and Seal Information

  • Bearings (sold separately)
    • Inner bearing: L68149 (1.378" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (sold separately)
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal (sold separately): 58846
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

spindle diagram

Part NumberCapacityABCDEFRound/Square
TRU47FR1,750 lbs1.50"1.719"1.378"1.063"1.00"3.625"Square




SP-20484-SQNWC TruRyde (TRP) Replacement #84 Square Spindle for 3.5K Axles - 1.50" Wide x 8.25" OAL

Replaces SP20484





Customer Satisfaction Score:


Customer Reviews

Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide - TRU47FR

Average Customer Rating:  4.9 out of 5 stars   (10 Customer Reviews)

Replacement #84 spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Castle nut, washer, and cotter pin included.

by:

I will use them for all my trailer needs in the future very help full through my trailer build.

Thanks




by:

Competitive pricing, quality item, fast shipping, Thanks WooooooooooHoooooooo!




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1 1/2 spindle is the correct product. Once the spindles are,welded into the new axle the axle will be complete and should last for years .




by:

Items was as described and what I needed for my job.




by:

Just what I ordered. Shipped quickly. Arrived quickly




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Great service and products.




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10
10

See what our Experts say about this TruRyde Trailer Spindles

  • Looking for Grease Seal Bushing
    The surface of the # TRU47FR where the grease seal rides is an integral part of the spindle, not a bushing. We do offer some Bearing Buddy grease seals like # BB60002 that provide a bushing like the one you speak of, but nothing that would work with the specific # TRU47FR spindle you referenced. If you use a different spindle, I would be happy to recommend the proper Bearing Buddy grease seal for you, if one is available. If you would care to provide me with the inner and outer bearing...
    view full answer...
    Image 1 for Image 2 for
  • How to Determine the Correct Replacement Hub for an Old Jetski Trailer
    The best way to determine the correct replacement hub is to go by the bearing numbers stamped into the inner and outer bearings. With those numbers and the wheel bolt pattern I can determine exactly what you will need. (I have linked a how-to article that explains how to measure bolt pattern.) If you want to measure the spindle then use the dial calipers because the measurements have to be as accurate as possible. Please refer to the picture I have included that shows where to measure...
    view full answer...
    Image 1 for
  • How to Determine the Correct Hub Replacements for a Home Made Boat Trailer
    Hubs with a 5 on 4-1/2 inch bolt pattern are very common. In order to determine the correct replacement hubs I would need to know the inner and outer bearing numbers stamped into the metal of the bearings or I would need measurements of the spindle to the thousandth of an inch. To get the most accurate measurement you would need to use dial or digital calipers. I have included a picture that shows the measurements needed and where to measure on the spindle. The issue is that on hubs with...
    view full answer...
    Image 1 for
  • Tips for Determining Square Trailer Axle Capacity
    Square axles can be tough to determine capacity. Often times the same spindle fits a range of axle capacities. The best way to determine the capacity is to get the inner and outer bearing numbers stamped into the metal of the bearings like you did. The numbers you listed do not match any of the spindles we carry though so I was not able to determine anything from that. The bolt pattern of the hubs on the trailer is typically used on 2k-3.5k axles, most 15 inch wheel trailer setups have...
    view full answer...
    Image 1 for Image 2 for
  • Spindle Measurement of Part # TRU47FR
    The F measurement is the length of the square portion of the spindle stub, which can either slide into the end of the axle and be plug welded in place or more commonly welded to the bottom of the axle tube. As long as the spindle is going on a 3500 lb axle and the rest of the dimensions match (B, C, D and E), it is not so important that the F dimension match perfectly, just as long as it is not dramatically shorter than the spindle it replaces.
    view full answer...
  • How to Determine the Correct Replacement Hubs for a Tracker Marine Boat Trailer
    What you are going to have to do is pull off one of the hubs, something you will have to do eventually any way, and get the inner and outer bearing numbers. The numbers are stamped into the metal of the bearings. With these numbers I can tell you exactly what you need as replacements. The wheel size and bolt pattern of the wheel will also help. I have included a link to a video that will help.
    view full answer...
  • Determining the Capacity of a Square Trailer Axle
    Square axles can be tough to determine capacity. Often times the same spindle fits a range of axle capacities. The best way to determine the capacity is to get the inner and outer bearing numbers stamped into the metal of the bearings. Going by those numbers, wheel size, and bolt pattern, we can determine the probable axle capacity. I have included some links that might help. There could also be a plate on the axle itself that lists the capacity. The most common place to find axle capacity...
    view full answer...
  • How to Pick Out Hubs for a Boat Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for
  • How to Pick Out Replacement Hub for a Trailer with Rusty Hub
    Your question came in blank, but it looks like you are looking for replacement hubs based on the pictures you submitted. In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what...
    view full answer...
    Image 1 for Image 2 for
  • Where to Measure a Trailer Spindle for Replacement Bearings, Seals, and Hubs
    I have included a picture that shows where you will want to measure the spindle. Measurements need to be as accurate as possible so I recommend using dial or digital calipers to take the measurements. If the other hub is still present you could pull it and get the inner and outer bearing numbers from it.
    view full answer...
    Image 1 for
  • How to Determine Capacity of Square Axle
    Square axle capacities are pretty hard to determine. Unlike round axles, they do not have set capacities based on their dimensions. Based on the bearings your hub looks like it's rated for 3,500 lbs. Most likely that would be the same rating as your axles.
    view full answer...
    Image 1 for
  • How to Pick Out Replacement Hub for Trailer
    To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel tracking problems. I would recommend finding a welder who is experienced with trailer axles. Your local RV dealer or repair facility could probably refer you. You will need to go with a hub that matches the weight capacity needed and the bolt pattern...
    view full answer...
    Image 1 for
  • How Do I Determine What Bearings and Hub are Needed for my Double Axle Trailer
    In order to determine what bearings you will need and whether or not you will be able to use the hub, you will need to take a couple of measurements on your spindle. I am including a diagram which illustrates the measurements that are needed. Once you have these measurements we will be able to determine what bearings are needed and from there, be able to tell whether you will be able to use the hub that you currently have. Please feel free to email me with your spindle measurements and...
    view full answer...
    Image 1 for Image 2 for
  • Where to Measure on Trailer Spindles to Determine Replacement Hubs
    You will need to measure the diameter of the spindles where the seal and bearings ride. Check out the picture I attached that shows where this is. You will need an exact measurement so either a digital or dial caliper will be needed. To pick out the correct hubs you will also need to determine the bolt pattern of the hubs you currently have so that the new ones will be compatible with your current hubs. I attached an FAQ on how to determine this. If you get back to me with that information...
    view full answer...
    Image 1 for
  • Replacement 3500 lb Axle for 5x12 Single Axle Utility Trailer
    Rather than trying to assemble axles from tubing and spindles, I'd highly recommend you go with a manufactured axle. Having a manufactured axle will provide you with a known weight capacity. Welding spindles to an axle tube is a very specialized skill that shouldn't be farmed out to that dude down the street who knows how to stick things together. 2-3/8 inches is the typical OD of axle tube for a 3500 lb axle. We offer some stock off the shelf axles in a 3500 lb capacity. The axles have...
    view full answer...
    Image 1 for
  • How to Pick Out Replacement Hubs for Small Trailer
    In order to pick out the correct hubs for your small trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for
  • How to Tell if a Trailer Spindle is Damaged or Needs to be Replaced
    If you remove the hub and wipe away the grease on the spindle you can check to see if it is damaged. Look for an scarring, gouges, discoloration, or scoring on the spindle. If the spindle is damaged then the bearings won't ride properly and can fail again or it can cause other problems such as uneven or excessive tire wear and ride quality problems. If the spindle is damaged then you can't really repair it and the whole axle should be replaced. I doubt that this is the case based on your...
    view full answer...
  • Does a Spindle with Scarring and Complete Bearing Failure Need to be Replaced
    What concerns me about this situation is the scarring on the spindle. Depending on how deep and how bad the scarring is, a new set of bearings and a new hub/drum assembly might experience the same problem down the road. This would mean that the spindle would need to be replaced also. Otherwise, you may have to frequently replace parts. It would be best in this situation to eliminate the possibility of future similar occurrences before they have a chance to cause damage. Any visible scarring...
    view full answer...
  • Removing and Replacing Trailer Spindles
    To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel tracking problems. I would recommend finding a welder who is experienced with trailer axles. Your local RV dealer or repair facility could probably refer you. In many cases, it's less expensive to simply replace the trailer axle itself. We offer...
    view full answer...
    Image 1 for
  • How to Determine Spindle Size for a 2004 Triton Elite WCII PWC Trailer
    There are two ways to determine what spindle you have on your 2004 Triton Elite WCII Jet-Ski trailer. The first way is to look at the number that is stamped on the bearings that you removed when you took the hub off. The second way is to use a dial caliper and get the measurements and find the spindle that matches those measurements. The new spindle must be absolutely square with the axle in order to prevent tire wear and wheel tracking problems. I would recommend finding a welder who...
    view full answer...
  • How to Pick Out Replacement Hub for Ski Boat Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for
  • How to Pick Out Replacement Trailer Hub for Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for
  • Weld-On Spindle for Trash Trailer Without Suspension
    If you don't need any suspension, then you can use a square pipe and the TruRyde Spindle # TRU47FR you referenced welded directly to the trailer. I don't recommend welding the spindle without more support to disperse weight as a bump could cause that spindle to break or bend without more support. I assume you will be using for light loads but it is probably worth mentioning that no suspension cuts a trailer's capacity in half so with the unknown capacity of your trailer you won't be able...
    view full answer...
    Image 1 for
  • How to Pick Out Replacement Hubs for a Boat Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for


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Info for this part was:

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Expert Research:
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Expert Research:
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Employee Lindsey S
Edited by:
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Employee Kathleen M
Installed by:
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Employee Wilson B
Updated by:
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