Found me a project trailer...

MikeSchinlaub

Petty Officer 2nd Class
Joined
Jan 14, 2025
Messages
107
I also measured the axle. I don't know where it's supposed to be measured from, so I went with the back of the hub. I got 86 1/2
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MikeSchinlaub

Petty Officer 2nd Class
Joined
Jan 14, 2025
Messages
107
I don't know how close the measurement needs to be, but I would eyeball the hubs at 1/4" thick, so that would make 87 inches.
 

ratdude747

Petty Officer 1st Class
Joined
Sep 30, 2023
Messages
247
I don't know how close the measurement needs to be, but I would eyeball the hubs at 1/4" thick, so that would make 87 inches.
Close enough to the 88 I measured... so 87 or 88 probably OK. Assuming they are in fact the same trailer (and one/both aren't slightly tweaked variants made for a custom order). 88 is a common straight axle size (as is 87), so either one is believable. Edit- the keel roller setup is different... so clearly not the exact same trailer. As long as the springs are centered, I'm confident in my 88" measurement (69 + 9.5 + 9.5)

Spring mounts match... so that's not the issue.

Looks like my springs are the issue... which makes sense, at low load leaf springs shouldn't be nearly flat. Yours have a lot more curve... and the empty trailer's weight shouldn't matter that much. Heck, I stood on it and the only thing that compressed were the tires (likely underinflated, but inflated enough for running light). Also, yours has 4 leafs while mine have 3. Not up to task?

Per my measurements, I have a spring spacing of 69", and the spring length is 26" (frame) / 25 7/16" (spring eye to eye, no shackle). I'm fairly certain they're standard 1 3/4" wide springs... but I didn't get a measurement (and I'm out of town).

While I might be able to save a few bucks by having a shop add flanges to the axle, I'm thinking it might make more sense to just replace the axle and springs as a set. Around $600-$800 before freight from what I'm seeing. Not currently in budget, but this trailer is a long-term project, so that's fine if it's justifiable.
 
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MikeSchinlaub

Petty Officer 2nd Class
Joined
Jan 14, 2025
Messages
107
I have a picture of me holding a tape measure against the hub and I did an eyeball guess from memory of the hub thickness. Shows how smart I am. Anyway, all this stuff about suspension components is above my head. I'll take measurements of other stuff if you want, but I'm out of advice to give.
 

ratdude747

Petty Officer 1st Class
Joined
Sep 30, 2023
Messages
247
I have a picture of me holding a tape measure against the hub and I did an eyeball guess from memory of the hub thickness. Shows how smart I am. Anyway, all this stuff about suspension components is above my head. I'll take measurements of other stuff if you want, but I'm out of advice to give.
You're good. Saw what I needed to see.
 
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