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#84 Spindle for 3,500-lb Trailer Axles - 2" Diameter

#84 Spindle for 3,500-lb Trailer Axles - 2" Diameter

Item # TRU24FR
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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. #84 Spindle for 3,500-lb Trailer Axles - 2" Diameter part number TRU24FR can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (3)
  • Q & A (28)
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TruRyde Trailer Spindles - TRU24FR

  • For 3500 lb Axle
  • Standard Spindle
  • 2 Inch Diameter
  • Round
  • 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.


  • 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


  • Application: 3,500-lb trailer axles
    • Spindle capacity: 1,750 lbs
  • Stub dimensions: 2" diameter x 2-3/4" 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
TRU24FR1,750 lbs2.00"1.719"1.378"1.063"1.00"2.75"Round

SP-20084NWC TruRyde (TRP) Replacement #84 Spindle for 3.5K Axles - 2" Diameter x 8.25" OAL

Replaces R40484

Customer Reviews

#84 Spindle for 3,500-lb Trailer Axles - 2" Diameter - TRU24FR

Average Customer Rating:  5.0 out of 5 stars   (3 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.


very nice people to deal with, will order from etrailer when i need more trailer parts. shipping and delivery is very prompt. 937091


Only one i could find anywhere that was a true 2” shaft. Worked great 913700




Ask the Experts about this TruRyde Trailer Spindles

  • Correct 5 Bolt Hub for #84 Spindle for 3,500-lb Trailer Axles
    Yes, I can confirm the Trailer Idler Hub Assembly part # AKIHUB-545-35-K will work with the #84 Spindle for 3,500-lb Trailer Axles part # TRU24FR.
    view full answer...
  • Idler Hub for Trailer Axle with 1-1/16 Inch and 3/4 Inch Tapered Spindle
    I do have an option for you but we do not offer any trailer hubs with bearings that match the dimensions you provided. Therefore, we can either offer you a new spindle like the TruRyde Spindle part # TRU24FR or a new axle like the Dexter Trailer Axle Beam with E-Z Lube Spindles part # 7359765. There is not a lot of room for error when replacing a spindle therefore unless you are an experienced welder then replacing the axle will be your best option. In order to recommend a replacement...
    view full answer...
  • What Size Axle Does a #84 Spindle Fit
    A true 1 inch spindle is a BT8 spindle, like # TRU94FR. The next closest one would be the BTR spindle which is commonly referred to as a 1-1/16 inch spindle, like # TRU44FR and is more common than the BT8. Both of these are typically used with 2,000 lb axles. A #84 spindle, like # TRU24FR or # TRU47FR is bigger and is used for 3,500 lb axles. Common sizes for these are 2-3/8 inch round axle, 3 inch round axle, and 2 inch square axle. I have linked a helpful page that shows the different...
    view full answer...
  • What Are the Dimensions of the TruRyde #84 Spindle for 3,500-lb Trailer Axles
    The #84 Spindle # TRU24FR is 8-1/4" long with a 2" diameter stub. This spindle will fit the following bearings and components, which are all sold separately: Bearings- Inner bearing: # L68149 (1.378" inner diameter) Outer bearing: # L44649 (1.063" inner diameter) Races- Inner race: # L68111 Outer race: # L44610 Grease seal: # 58846 Inner diameter: 1.719" Outer diameter: 2.565"
    view full answer...
  • Replacement Hubs Based on Tapered Spindle Measurements
    If you give me the tapered spindle measurements like in the attached photo, I can help you get the replacement hubs you need. I need the measurements at letter B where the seal sits, letter C where the inner bearing rides, and letter D where the outer bearing rides. The only other thing I will need is bolt pattern and whether you want idler hubs, drum brakes, or disc rotors. I've attached an article to assist with bolt pattern to match your wheels.
    view full answer...
  • Spindle Dimensions of a 3500 lb Axle
    3500 lb axles have the most common and most consistent spindle sizes. They are typically 1.73 inches at the seal, 1.38 inches at the inner bearing and 1.06 inches at the outer bearing like # TRU24FR. I've attached a video to assist. I've linked the page to all of the options for hubs or hub/drum assemblies for this size spindle. There are 4 different sizes for 5 bolt assemblies and I've attached an article to assist.
    view full answer...
  • Hub Recommendation to fit 84 Spindle TRU24FR
    For an idler hub to fit the 84 spindle part # TRU24FR we have the part # 84545BX as a confirmed fit. This has a bolt pattern of 5 on 4-1/2 inch which is very popular but we do not recommend you use vehicle wheels on this hub.
    view full answer...
  • What Grease Seals Do I Need For An # 84 Spindle
    If the inner diameter bearing on your spindle measures 1.38" and the outer diameter bearing measures to be 1.06", then you have a #84 spindle such as part # TRU24FR rated for 3,500 lb. trailer axles. The correct grease seals for this spindle are Grease Seal - Double Lip part # 58846 which has an inner diameter of 1.719" and an outer diameter of 2.565". As the grease seals are a very tight fit, you may want to use a block of wood and mallet to get the seals to seat properly. Attached is...
    view full answer...
  • Availability Of 5-5 1/2 Inch Hub Assembly, Spindle, Bearings Rated For 1,750 lbs. Each
    I have the Dexter Trailer Hub Assembly - 3,500 lbs Axles - 5 on 5-1/2, # 84555UC1, which is rated at 1,750 lbs. each. The bearings, races, cap and seal included. The only other option I would have is the Dexter Trailer Hub & Drum Assembly - 3,500 lbs. Axles - 5 on 5-1/2, # 84557UC3, if you were wanting brakes. The capacity is 1,750 lbs. and comes with a 10 inch X 2-1/4 inch drum. It also comes with bearings, races, cap and seal. The spindles that are available for both hub assemblies...
    view full answer...
  • Replacement Hub Needed for TruRyde #84 Trailer Spindle # TRU24FR
    You are correct, the Trailer Hub Assembly - 3,500 lbs Axles - 5 on 4-1/2, item # 84545BX, is compatible with the TruRyde #84 Trailer Spindle, item # TRU24FR. The Trailer Hub Assembly - 3,500 lbs Axles - 5 on 4-1/2 comes with innner and outer bearings, grease seal, lug nuts and grease cap for a complete replacement package.
    view full answer...
  • Is Redline Trailer # 84 Spindle a Fit for Dexter 8-247 Drums
    You are correct that the TruRyde #84 Spindle, like part # TRU24FR, which you reference, is a fit for your Dexter trailer hub and drum, part # 8-247-50. Please note the spindle has a 1750 lbs. capacity, so two spindles will give your axle a 3500 lbs. capacity. I would strongly recommend you take the axle to a qualified machine shop to have the appropriate welds done.
    view full answer...
  • Recommended Spindles And Hubs For Trailer With 6 on 5-1/2 Inch Wheels
    The sizes you gave line up with Timken bearings and races, however they are not compatible with standard size hubs and spindles. I recommend changing out your spindles for more long term options and compatibility. This will require a professional welder, but is a better long term option to have standard spindles. You may want to consider changing out your spindles for #84 EZ Lube Spindles # TRU74FR or # TRU24FR. This will give you spindles compatible with no. 84 spindles. Then...
    view full answer...
  • Cause for Uneven Tire Tread Wear on One Tire of Tandem Axle Utility Trailer
    It sounds like your Haulmark 7 x 12-foot tandem axle enclosed utility trailer has a bent left rear spindle. This could occur from an impact with road debris or from hitting a curb with the trailer fully loaded. If both tires on the same axle showed equal wear on their inside edges then this would tend to indicate overloading of the axle, but since it is only one of the four wheels the problem is likely to be localized to that one spindle. If the spindle were to be bent upward then the...
    view full answer...
  • Availability of Spindle that Would Fit Square Tube Axle
    New spindles should be welded on only by a professional welder who has experience and the correct jigs for installing spindles perfectly straight and concentric. If not installed correctly the trailer may not track properly and uneven tire wear can occur. It might be more trouble than it's worth to try and fit a round spindle like the part # TRU24FR in a square tube axle by trimming it. We have a square version of this spindle as part # TRU47FR.
    view full answer...
  • What Hubs Will Fit Redline 2-Inch x 4-Inch Round Spindle # TRU24FR
    The #84 spindle you reference, TruRyde # TRU24FR, is rated for use on 3500-lb axles. This spindle is compatible with both of the hubs you mentioned, parts # 84545BX, which is an idler hub; and # 84546UC3-EZ, which is a 10-inch drum brake hub intended for use with EZ-Lube spindles. The TruRyde spindle # TRU24FR is not an EZ-Lube spindle but it would still work with hub # 84546UC3-EZ. If you prefer a non-EZ-Lube version of this hub you can use part # 84546UC3. TruRyde does make an EZ-lube...
    view full answer...
  • Stainless Steel Kodiak Disc Brakes for 3,500 Pound # 84 Spindle
    A #84 spindle, like # TRU24FR , is a spindle for a 3,500 pound axle that has inner bearing # L68149 and outer bearing # L44649. The bearing kit that fits is # BK2-100. To replace your brakes and hubs you'll need the Kodiak Stainless Steel Brake Kit # K2R35S with hubs # KH84545S. You'll also need the bearing kit # BK2-100 that I mentioned earlier.
    view full answer...
  • Replacing 10x1-1/2 Inch Brake Assemblies with 10x2-1/4 Inch Brake Assemblies
    As long as your spindles are 4.75 inches from seal to threading like # TRU24FR or # TRU57FR they are compatible. I've attached a photo to assist. You will be able to use the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA. We do not carry a hub that will fit the bearings you referenced. My recommendation is to change your axle or at least your spindle to allow you to use standard hubs like # AKHD-545-35-K. This will...
    view full answer...
  • Do I Need to Replace #84 Spindle With Rust On Surface and What Bearing Kit Do I Need
    You should still be able to use your spindle without having to replace anything, especially because this is not in the seating areas for the bearings. Regardless, I recommend cleaning off the spindle with emery cloth to try to remove as much of the rust as possible. You'll want to take care to make sure that there is no pitting on the spindle that might damage the new bearings, which would be the only case that I recommend replacing the spindles. If you do end up needing to replace your...
    view full answer...
  • How to Determine Fitment of the Trailer Idler Hub Assembly # AKIHUB-555-35-EZ-K
    The Trailer Idler Hub Assembly # AKIHUB-555-35-EZ-K is compatible with 3,500 lb trailer axles that use the #84 spindles like part # TRU24FR. You can determine if it will fit by pulling your hub and checking the bearings and grease seal that is on your current hub. This hub uses the inner bearing # L68149 and outer bearing # L44649 and it comes with a grease seal that has an inner diameter of 1.719". If your current hub uses the same then this is an exact replacement. If you can't find...
    view full answer...
  • Wide Trailer Tire Recommendation for Building Trailer that will be Used on Sand
    The widest tire size we have is the 235/80-16 which has a section width of 9-1/4 inches. For a wheel and tire in that size with a trailer wheel that has a 6 on 5-1/2 inch bolt pattern you'd want the part # A16RTK6SMV. So then to reverse engineer from there you'd want a 6 lug hub like the part # AKIHUB-655-35-K and then you'd want the 84 spindle like the TruRyde part # TRU24FR.
    view full answer...
  • How to Measure to Confirm Bearing and Spindle Compatibility
    The parts you referenced, tapered roller bearing # L68149 and idler hub assembly # 84545BX, do work together; the that bearing is the inner bearing for this hub. The bearing's inner diameter is 1.378-inches and it fits a #84 spindle like # TRU24FR. To confirm a fit on your spindle you will need to measure the spindle diameter to three decimal places, to the nearest thousandth of an inch, using a digital caliper like # PTW80157.
    view full answer...
  • Correct Bearings for 1-3/8 Inch Spindle
    I do have the correct bearing for a 1.375" spindle like part # TRU59FR however, the L68149 bearing is not the correct bearing for this spindle. The correct bearing for the 1-3/8" spindle is the L44643 bearing like that in the Bearing Kit for 1" BT8 Spindle part # BK1-100 which is designed for 2,000 lb. axles. The Replacement Trailer Hub Bearing part # L68149 is compatible with an #84 spindle such as the Spindle # TRU24FR which is designed for use on a 3,500 lb axle. I have attached...
    view full answer...
  • Replacement Options for Hub and Drum With 09067 Outer Bearing and 15123 Inner Bearing
    Unfortunately we do not have any hubs that use those bearing numbers. Your options would be to remove your old spindle and install a new spindle such as # TRU24FR with compatible hub and drum such as # 84546UC3. You could also replace your entire axle with one such as # 35545E-ST-89, which is rated for 3,500 lbs and has electric brakes. In order to determine the correct axle you would need to measure from hub face to hub face and spring center to spring center like in the accompanying photo....
    view full answer...
  • What Spindle Will Work for Trailer Hub Assembly with L68149 Inner and L44649 Outer Bearings
    The Trailer Hub Assembly # 84550BX that you referenced will use # L68149 as the inner bearing and # L44649 as the outer bearing. These are the inner and outer bearings used by a # 84 spindle. We offer the following spindles: #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter (11-1/4" OAL) # TRU84FR [R2061-284] #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter (9" OAL) # TRU74FR [R20384EZ] #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter...
    view full answer...
  • Correct Spindle for Hub with L44610 and L68111 Races
    The numbers that you mentioned are actually for the races that pair with the inner and outer bearings in the trailer hub. The # L44610 race is commonly used with the # L68149 inner bearing while the # L68111 race is usually paired with the # L44649 outer bearing. If this is the case then you likely have a 3,500 pound hub like the Dexter # 84546UC3 that is compatible with a #84 spindle like the TruRyde #84 Spindle, part # TRU24FR. As long as you have a 2-3/8 inch round axle the correct...
    view full answer...
  • Replacement Hub and Spindle for 2" Square Axle with 3500-lbs Capacity
    To start, you could use the #84 Spindle for 3,500-lb Trailer Axles - 2" Diameter # TRU24FR to replace your damaged spindle; this spindle will accept the same # L68149 and # L44649 bearings that were on your old hubs. When it comes to hubs and rotors that are 11" diameter, we don't have anything that matches that but you could easily just replace both sides so you've got brake rotors and hubs that are brand new on both sides. For this you can use the Kodiak # KHR10D you were looking...
    view full answer...
  • Recommended #84 Spindle for a Hot Walker
    The Dexter Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles part # 84546UC3-EZ is designed to work with an #84 spindle that has an inner bearing L68149 (1.378" inner diameter) and an outer bearing L44649 (1.063" inner diameter). Therefore, for a spindle that will work with this hub assembly, I recommend using part # TRU24FR for round or part # TRU47FR for square.
    view full answer...
  • Spindles That Will Work With Dexter Trailer Hub Assembly # 84545UC1-EZ
    We offer 3 spindles that have the dimensions compatible with the Dexter Trailer Hub Assembly, part # 84545UC1-EZ. The first is part # TRU74FR. This is a 1.75 inch round EZ-Lube spindle with a grease fitting and a brake flange. This spindle has an overall length of 9 inches. The next is part # TRU64FR. This is a 1.75 round spindle that does not have the brake flange or grease zerk fitting. This spindle has an overall length of 8-1/4 inches. The third is part # TRU24FR. This is a...
    view full answer...

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Info for this part was:

Edited by:
Lindsey S
Updated by:
Sarah W
Written by:
Alexander C
Installed by:
Michael B

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