UFP Unique Functional Products

Trailer Axle Drop Spindle, Tapered for 1 3/8" x 1 1/16" bearings, 2900-3750lb Axles #34398

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  • Regular price $ 66.24
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Trailer Axle Drop Spindle, Tapered for 1 3/8" x 1 1/16" bearings, 2900-3750lb Axles #34398

This trailer axle spindle is for use with 1 3/8" x 1 1/16" trailer wheel bearings.  Complete with standard 4-bolt brake flange. Axle spindle nut, washer, retaining ring, and cotter pin are included.  Up to 1,875lb. capacity each.  This spindle is for use with 2" x 2" or 2" x 3" tubing.  Steel tubing should be welded to the flat surface of the leg of the spindle.


  • 1,875 lb. capacity each
  • For use with 2,900-3,750 lb. axle capacities
  • Use for a 1.68 Inner Diameter Seal
  • Equipped with standard 4 bolt brake flange
  • Includes spindle nut, washer, retaining ring, and cotter pin

Customer Reviews

Based on 18 reviews
John S.
drop axle spindle

perfect match to original - didn't see on other websites.

Matthew P.G. (Big Bear, US)

It was exactly as advertised. Worked perfectly for my odd DIY project.

Allen K. (Parma, US)
Saved a lot of money

One spindle on the axle was destroyed. I cut the old spindle of making sure it was square to the tube. Be aware that some axles have a a camber crow in it that needs to be maintained. The spindle was clamped square and a jig was used to verify the height (drop) of the spindle. It was spot welded on all 4 sides to prevent movement. Then, final welding the sides. A new axle was quoted $750. I repaired this one for less than $100

Sam C. (Elkview, US)
Trailer Spindle

Great part. perfect fit. Looking forward making another order soon. Thank You

Travis P. (Duluth, US)
Great Quality part.

Part shipped quick and was very good quality. The welds were very nice and the part was nice and square. i would definitely recommend them to my friends and i will have them build my next custom axle.

Philip S. (Woodland, US)
Very Nice.

The product worked very well, everything works as it is supposed to. Glad I found Pacific Boat Trailers.

Jarrod S. (Gilbert, US)

Worked perfect. Saved me several hours fabricating a new one for on my own.

Steve P. (Weatherford, US)
Drop down spindle

Product was EXACTLY as advertised and delivered as stated! Will definitely use them in the future!

Chet B. (Purdon, US)
Drop spindle

Just as described work great

Dustin (Malden, US)
Axle spindle

Pacific trailer did an excellent job regarding the welds on the spindle. Item is just as advertised. Would recommend to anyone