Determining Correct Replacement Axle For Older Axle With Obsolete L68149 LM12749 Bearing Combo

Updated 06/08/2021 | Published 06/06/2021

Products Featured in This Question

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

(117)

$81.81

Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs

(785)

$233.32

Question:

Heres the information I have from taking your spindle readings. They are short spindles 3.41 inches B 1.95 Seal Surface Napa 57523-c1 C 1.38 1.37 Inside Bearing Surface Tyson L68149 G3 D .86 Outside Bearing Surface LM12749 E .81 Castle Nut Inner Surface Nut 1.11 Thread 7 Thread Length .71 4 1/2 inch Bolt Pattern 14 inch rims Interseal 1.95inch Interbearing 1.38inch Outerbearing .86inch ShortSpindle Hub Length 3.41

asked by: Gregory W

Expert Reply:

I have a replacement axle option for you, but we do not have any hubs that will fit your spindle with the # L68149 and LM12749, and I was unable to find any replacements online.

The best option is going to be replacing the axle with one that uses standard bearings to make finding replacement parts now and in the future easier.

To do this you will need to take a few measurements, from hub face to hub face and and from spring center to spring center, and determine the axle weight rating.

The easiest way to determine the axle weight rating is to look for the axle tag on the center of the axle as it will have the axle rating stamped on it, or if the tag is missing you can get a rough idea by taking the GVWR of the trailer and dividing it by the number of axles.

For example the Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs # T3584F-EZ-8974 is a 3500lb axle that has a hub face to hub face measurement of 89" and a spring center to spring center measurement of 74" as shown in the included diagram. If this matches your current axle this would be a perfect replacement option.

If your axle has a different length or weight rating just let me know.

I included a video of the # T3584F-EZ-8974 for you to take a look at.