Solution for Replacement Axle on 2004 Marine Master Boat Trailer

Updated 11/09/2025 | Published 11/03/2025

Products Featured in This Question

Timbren Axle-Less Trailer Suspension - Standard Duty - No Drop - 4 Bolt Flange - 3,500 lbs

(130)

$1066.69

Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Drop - 4 Bolt Flange - 3,500 lbs

(130)

$925.33

Question:

I have a 2004 boat trailer for a 20 Triton. The trailer was made by Marine master trailers. My spindle is damaged so I need to replace the rear axle. I am told it is a 20V series axle. My measurements are 68 spring center and 87.5 hub face. I am told it has a 3.5 and the springs come with it. Do you have anything comparable?

asked by: Michael B

Expert Reply:

Hi Michael; I do have a solution, but we don't have any standard axles that match your 87-1/2" hub face measurement. When you say 3.5 do you mean it has a 3.5k capacity? If that is correct, you can use the Timbren Axle-Less Trailer Suspension # ASR3500S05.

This is a universal system that fits any frame width. It will also replace your leaf springs and upgrade your suspension. If you have a different capacity let me know and I can see what else is available. If you want to stick with a standard axle, I would reach out to Dexter directly to see if they can get you one that matches your current specs.

expert reply by: Robin H

Timbren Axle-Less
(click to enlarge)

Michael B.

11/9/2025

I am sorry the 3.5 was a 3.5" drop

Robin H.

11/9/2025

@MichaelB there are 4" drop options like # ASR3500S04 but I would need to know your axle capacity if you want to go that route.

Michael B.

11/9/2025

Also, it is a tandem axle boat trailer. Would I have to replace the suspensions on both axles? The one I need to replace is the axle with the disc brake, so i would need the support bar to run the brake line across it.