Can a Trailer With a 5 x 4 1/2 Bolt Pattern Be Converted to a 4 x 4 3/4 Bolt Pattern

Updated 02/10/2025 | Published 02/05/2025

Question:

question about a car hauler. Is there a way to convert from the 5x4.5 pattern to 4x4.75 bolt pattern?

asked by: Scott W

Expert Reply:

Hey Scott, unfortunately converting from a 5x4.5 bolt pattern to a 4x4.75 bolt pattern is not possible without significant modifications or custom-made parts because they have a different number of lug nuts (5 vs 4) and different lug nut spacing.

I wish I had a better answer for you, but if there is something else you have questions about or need help with something else feel free to drop a comment and let me know!

expert reply by: Bryce D

Scott W.

2/7/2025

Bryce, I typo'd the question. it was meant to go from 5x4.5 to 5x4.75. My applogies. I have since measured the trailer and found its a Big Tex brand and has a 5x5 bolt pattern. I am now thinking to convert from 5x5 to 6x5.5. One axle has brakes which I want to replace with new. Scott Wilson

Bryce D.

2/7/2025

@ScottW Gotcha no worries Scott. If you have a 3,500 lb axles then you can use the CE Smith Trailer Idler Hub Assembly for 3,500-lb Axles # CE13611.

Scott W.

2/7/2025

@BryceD Thank you, since you hit that one so fast, can you recommend the brake assembly also? Also, is it possible to upgrade and do brakes on both axles? Scott

Bryce D.

2/10/2025

@ScottW Sure Scott, you can use the etrailer Electric Trailer Brakes # AKEBRK-35-SA. It is also possible to upgrade the brakes on both axles as well.