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

#84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter

Item # TRU64FR
Our Price: $55.37
Trailer Spindles
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. Great Prices for the best trailer spindles from TruRyde. #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter part number TRU64FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (21)
  • Q & A (0)
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TruRyde Trailer Spindles - TRU64FR

  • For 3500 lb Axle
  • Standard Spindle
  • 1-3/4 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.


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: 1-3/4" diameter x 3-1/2" 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
TRU64FR1,750 lbs1.75"1.719"1.378"1.063"1.00"3.50"Round




SP-17584NWC TruRyde (TRP) Replacement #84 Spindle for 3.5K Axles - 1.75" Diameter x 8.25" OAL

Replaces R20484





Customer Satisfaction Score:


Customer Reviews

#84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter - TRU64FR

Average Customer Rating:  4.8 out of 5 stars   (21 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:

These are excellent. I bought 8 of them for the vehicle in the picture and they have worked perfectly. Clearly they can be used for many applications with very little adaptation needed. Have a great day.



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This item has been sold as part of a unit item to a customer. As far as we know there have not been any issues. The customer has not been in contact with us concerning this item.



by:

Perfect fit. Wrks great



by:

I was sent the wrong spindle and had to turn it on the lathe to match what I was supposed to recieve. Next time I will just make my own parts. Waste of time.

Etrailer Expert

Brooke M.

11/18/2022

Thanks for reaching out. I will have out customer service team reach out to you about this.



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Had an issue with shipping but etrailer was quick to resolve the issue and they worked perfect for our project.



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Delivered on time and as advertised.



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very happy



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Excellent customer service, Rodney S went above and beyond what I expected, package arrived a day earlier than anticipated, will definitely use these folks again in the future.



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Perfect fit. Fast delivery



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Easy to order and quick sipping. Thank you



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21
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See what our Experts say about this TruRyde Trailer Spindles

  • Looking for 5 on 4-3/4 Inch Bolt Pattern Idler Hub Compatible with L44649 Inner and Outer Bearings
    The L44649 bearing is compatible with a 1.062 inch (1-1/16 inch) spindle which is used on 2000, 2200, 2500 and 2700 lb axles. A 5 on 4-3/4 inch bolt pattern hub is found on hubs compatible with a 3500 lb axle, and uses different bearings (L68149 inner and L44649 outer), so we unfortunately don't offer a hub with that bolt pattern that's compatible with your current spindles. This leaves you with a few options. You could replace your existing axle with one that's compatible with the bearing...
    view full answer...
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  • Recommended Spindles, Hubs, Wheels and tires for 1200 lb Piece of Agricultural Equipment
    If a 2000 lb capacity per pair of spindles would work for you, I'd go with the # TRU94FR spindle along with the # AKIHUB-545-2-LFEZ-1K complete hub which includes bearings, races, the grease seal, the dust cap and lug nuts. The hubs are even pre-greased. The hubs are sold individually. For a compatible wheel/tire combo, use # TA53VR. This is a 205/75-15 bias-ply tire mounted on a white spoke 15 inch wheel with a 5 on 4-1/2 inch bolt pattern. If you're looking for something with a higher...
    view full answer...
  • What Size of Spindle is Needed for a 3,500-Lb Axle
    I have three spindles that are for a 3,500-lb axle and have the bearing dimensions you have listed. The only difference is the dimension for the grease seal is 1.75 inches, not the 1.795 inches that you have mentioned. Maybe you typed in the seal diameter wrong. The hub number you have mentioned is just a casting number, not a part number. The three spindles I have for a 3,500-lb axle are as follows. #84 Spindle - 1-3/4" Diameter (8-1/4" OAL) # TRU64FR #84 E-Z Lube Spindle w/ Brake Flange...
    view full answer...
  • Spindle Replacement Recommendation For Donahue Horse Trailer
    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...
    view full answer...
  • Replacement Spindles For 3,500LB Trailer Axle With Tapered Spindle with 1-1/16" & 1-3/8" Bearing ID
    We do have the following replacement spindles that will fit on your axle. #84 Spindle for 3,500-lb Trailer Axles - 2" Diameter # TRU24FR #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter # TRU84FR #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter # TRU64FR #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter # TRU74FR
    view full answer...
  • Replacement Spindle For Jet Ski Trailer With 2,700 lb Capacity
    Appreciate all that information, but unfortunately we do not have a 2,700 lb spindle, or one with those bearings and seal. The best I can offer is to go up to a 3,500 lb spindle, and you'd also need new hubs. What you can use is the following: - #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter # TRU64FR - Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 4-1/2 - Galvanized # AKIHUB-545-35-G-K I realize this isn't exactly what you were looking for, but I did want to mention...
    view full answer...
  • How to Choose Correct Replacement Trailer Spindle
    Definitely feel free to send in a photo of the damaged spindle, but photos can only help out so much. The best way to know we're getting you the correct spindle replacement is for you to measure the spots along the spindle where the bearings and seal are seated, as well as note the weight capacity of your trailer axle. Once we know all of this we can filter through our selection and find the best replacement option for you. For example, the #84 spindle # TRU64FR uses inner bearing # L68149,...
    view full answer...
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  • Recommended Tapered Spindles for 3,500 lb Axle
    Given the measurements you provided, there are three spindles we offer for a 3,500-lb axle: #84 Spindle - 1-3/4" Diameter (8-1/4" OAL) 1,750 lbs part # TRU64FR #84 EZ Lube Spindle 1-3/4" Diameter (9" OAL) 1,750 lbs part # TRU74FR #84 Spindle - 1-3/4" Diameter (11-1/4" OAL) 1,750 lbs part # TRU84FR The bearing surfaces of each of the three are the same, with the difference being the overall length of the spindle. I would recommend using a digital caliper and comparing the bearing surfaces...
    view full answer...
  • Recommended Trailer Idler Hub for a Trailer with 84 Spindles
    The threaded portion of the spindle isn't that important when picking out a replacement hub. That portion of the spindle is only for the castle nut, and since you have that already you would be fine. As long as the rest of the dimensions of your spindle match the # TRU64FR then the hub part # 84545BX would fit.
    view full answer...
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  • Spindle Recommendation for the Dexter 5 on 4-1/2 Complete Hub-and-Drum Assembly # 84546UC3
    Yes we do. The Dexter 5 on 4-1/2 Complete Hub-and-Drum Assembly # 84546UC3 that you referenced is designed to fit a number 84 spindle like the part # TRU64FR.
    view full answer...
  • Replacement Hub Components for Hub 9606020
    While the # L68149 most likely corresponds to the inner bearing number of your hubs. If this is the case, you have either a 3.5k or a 4.4k axle. In order to know absolutely sure, you need to know the corresponding outer bearing number or the inner and outer diameter of the grease seal. You most likely need to wipe away the grease in order to reveal the outer bearing number. In order to accomplish this, I recommend using calipers like the 4" Carbon Fiber Digital Caliper # PTW80157. I...
    view full answer...
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  • Trailer Hub To Spindle Combinations for 2000 Pound or 3500 Pound Axle
    The HUB KIT # 8-259-5UC1, uses a 1,000 pound spindle, item # TRU44FR. This setup is for a 2,000 pound axle. The #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter, item # TRU64FR, is for a 3500 pound axle. If you need a hub and spindle for a 3,500 pound axle then you would use the # TRU64FR spindle and the Trailer Hub Assembly for 3,500 lbs Axles with 5 on 4-1/2 bolt pattern, item # 84545BX.
    view full answer...
  • How to Determine Hub and Spindle Size
    The spindle dimensions are as follows: A is the mounting dimension, B is the seal dimension, C is the inner bearing surface, D is the outer bearing surface and E is the diameter of the threaded portion of the spindle for spindle nut selection. Say you need a spindle and hub for a wheel with 5 on 4-1/2 inch bolt pattern and an axle that is 3500 lbs. For a single axle trailer you can use two of either the item # TRU64FR, if your axle is round or item # TRU47FR if your axle is square. Then...
    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...
  • Spindles for a Trailer Hub Assembly for 3500 lb Axle
    The following spindles will fit hub 84545BX 1. Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide (8-1/4" OAL) # TRU47FR 2. #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter (8-1/4" OAL) # TRU64FR 3. #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter (11-1/4" OAL) # TRU84FR
    view full answer...
  • Spindle Recommendation for a Hub that Has Bearing Dimensions 1.06 and 1.38
    The spindle we offer that has the closest dimensions to what you listed will be an 84 spindle like part # TRU64FR. The surface of the spindle where the bearings will ride is 1.06 inch and 1.38 inch which is pretty close to what you have but not exact so you would want to double check the measurements you took. For a hub then with the bolt pattern 5 on 4-1/2 inch like you said you need you would want the part # 84545BX.
    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 2 inch...
    view full answer...
  • Replacement #84 Spindle for Dexter 3500-lbs Axle
    As long as you've got a 3500-lbs EZ Lube axle then you can use the #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter # TRU74FR to replace your spindle; if you don't have EZ lube axles then you'll want to use the #84 Spindle for 3,500-lb Trailer Axles - 1-3/4" Diameter # TRU64FR and Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34. Both of these spindles take # L68149 inner and # L44649 outer bearings. To replace the hubs you'll want to use...
    view full answer...
  • What Size are the Bearings in the Titan Disc Brake Kit # T4747200 and the Spindles That They Fit
    The bearings that are included in the Titan Disc Brake Kit, part # T4747200, are the # L44649 for the outer bearing and the # L68149 for the inner bearing. The # L44649 outer bearing has an inside diameter of 1.063, which is 1-1/16 inches and the # L68149 inner bearing has an inside diameter of 1.378, which is 1-3/8 inches. These dimensions match the dimensions on your spindle. The Titan Disc Brake kit will work on tandem axle trailers with 3,500-lb axles and a wheel size of 14 inch or...
    view full answer...
  • Compatibility of Disc Brake Kits for Idler Hubs on Boat Trailer
    The Kodiak Disc Brake Kit # K2R35S is designed for 3500-lb-rated axles that have idler hubs and allows converting them from idler to disc brake operation. The bolt pattern determines whether they will fit on your idler hubs; and they will fit a #84 spindle like # TRU64FR. This system would brake too aggressively if installed on a 2100-lb GAWR axle. Brakes should always be selected based on the axle weight rating; this is true for disc or drum brakes. Typically a 2100-lb axle will have...
    view full answer...
  • Do You Have a Weld On # 84 Spindle With a Grease Zerk For E-Z Lube Hubs?
    The #84 E-Z Lube Spindle # TRU74FR matches the dimensions of the #84 Spindle # TRU64FR and will have the E-Z lube spindle and a brake flange. With the brake flange the stub will be 3/4" longer. If necessary you can cut off the brake flange to get the correct length but otherwise it will not affect the operation of a non braking idler hub.
    view full answer...
  • What Size Spindle do Bearings L68149 and L44649 fit on
    Yes, you are going to want a spindle that has the 1.063" and 1.378" measurements. This is commonly known as a #84 spindle and can be found on our site with a few variances. For example, the TruRyde EZ Lube Spindle # TRU74FR comes with a brake mounting flange and a grease zerk fitting while the Redline Spindle # TRU64FR does not come with the flange or a zerk fitting. These fit the typical round applications but we also have one for a square application with part # TRU47FR. Any of these...
    view full answer...
  • Recommended Idler Hubs and Electric Drum Hub and Brakes for Horse Trailer with 3,500lbs Axles
    It sounds like you have a 3,500lb axles on your horse trailer from your measurements. For 5 on 4-1/2 bolt pattern idler hubs I recommend the # AKIHUB-545-35-EZ-K. For the 5 on 4-1/2 bolt pattern electric brake hub I recommend the # AKHD-545-35-K. For self adjusting 10 inch brakes that will work with the # AKHD-545-35-K hub you will want (right) # AKEBRK-35R-SA and for (left) # AKEBRK-35L-SA. I have linked the above mentioned products to this page for your convenience.
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C

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