Replacing Spindle on Boat Trailer Using Digital Caliper

Question:

I need to replace the Hub on a boat trailer that I have but Im really struggling to the correct one. I have taken measurements with a digital micrometer and have those measurements in both metric and standard. The spindle is trashed and needs replacement as well but I need to get it transportable. If Im not mistaken, I believe the spindle would have to be cut off and rewelded on as new. In the meantime, can you help me identify the hub that I need to replace so that I can get this thing mobile? Pictures available on request

asked by: Boat T

Expert Reply:

It looks like the inner bearing you measured at 1.369" and the outer bearing at 1.059" and if that's the case you likely have a 3,500 lb axle as the inner is probably L68149 (1.378") and the outer is probably L44649 (1.063"). If you're looking for a new spindle you'd need the #84 E-Z Lube Spindle part # TRU74FR or if you're looking for a new hub you'd need the Easy Grease Trailer Idler Hub Assembly for 3.5K Axles part # AKIHUB-545-35-EZ-K.