Looking For 4 on 4 Hubs For Older Trailer With Short Spindles
Updated 12/15/2025 | Published 10/31/2024
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Question:
Have a 4 bolt 4inch hub on a 1inch spindle but only 3inch of spindle length from seal shoulder to 1/2inch threaded necked down shoulder for castle nut please help. Need 4 hubs. Older trailer. Rob D
asked by: Rob D
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Expert Reply:
Hello Rob, thanks for reaching out. We do offer some 4 on 4 hubs that will fit a 1" spindle, but we do not have anything for a short spindle like you described. A lot of older trailers used shorter spindles, and this design is not obsolete.
The only solution for this will be to replace the spindles with the BT8 Spindle for 2,000-lb Trailer Axles # TRU94FR. This is a 1" straight spindle and it is the standard length. You can use that with the Trailer Idler Hub Assembly # AKIHUB-440-2-G-1K which is the 4 on 4 bolt pattern. Keep in mind that the new spindles will need to be welded on and this is best done by a professional.
Product Page this Question was Asked From
Grease Cap, 1.988" OD Drive In - Qty 2
- Trailer Bearings Races Seals Caps
- Caps
- Standard Grease Cap
- 1.99 Inch O.D.
- 1.99 Inch
- 2000 lbs Axle
- 2200 lbs Axle
- 2500 lbs Axle
- 3000 lbs Axle
- 3500 lbs Axle
- TruRyde
more information >
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Jesse M.
12/15/2025
Hey Rob, how did things go with the new BT8 spindles and 4 on 4 hubs for your older trailer? Your update could make it easier for others working with short spindles to find a good solution.