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NJ6PACK's avatar
NJ6PACK
Explorer
Aug 20, 2013

Broke Trailer Leaf Spring

I just completed a 1,252 mile trip with no problems except for the last 528 yards.

Turning onto my street yesterday I heard a loud BANG! when I got to my house I noticed that the leaf spring on the front axle broke. I guess I'm lucky it happed on my street a few houses away.



Looking back I noticed the TT was slightly leaning to the side a few times I thought it was the road angle I guess the spring was getting weaker and starting to go.

I obviously have to replace the broken leaf spring but I am thinking that I should replace all the leaf springs with heavier duty ones.

Both axles are rated at 3500lbs The GVWR of the TT is 7500lbs (I guess the mfr figures the remaining 500lb difference between the two axles is for the hitch).

I'm not sure what the springs should be rated at so I am going to remove the broken spring today and bring it to the local spring shop and see what they say.

A few years ago I added the Dexter EZ Flex after a Shackle broke so I'm Good as far as that's concerned (including wet bolts).

If I go with heavier springs is that a good idea and if so how much heavier, 500lbs or 25%

Will heavier springs raise my trailer height?....That would be fine because my TT rides low to begin with, I don't want to do a axle flip.

Does anyone else have any thoughts on this or experience with this?

Thanks...Chris
  • My thought is that either the spring steel used to make the leafs was bad to begin with or bad heat treating (too brittle), or a combo of the two. Unless its overloaded, I doubt the spring rating should have been an issue. But next size up would not hurt either.

    I agree though, replace both sides for peace of mind.
  • It looks like the two bottom leaves were already broken, they are rusty, and the two top ones are a fresh break. I have had many broken springs, it is just a fact of life. It seems like it is time to replace all the springs.
  • I had the same thing happen. Turned onto our street (off camber turn)and bang.

    I put on heavier capacity springs +500 lbs and the EZ-Flex all the way around. It raised the trailer about an inch from the old (sagging) springs.

    On the Dexter website you will find a graphic showing what measurements you need to provide for heavier springs. I got mine at a local trailer repair/supply shop. Dexter folks suggested getting them locally to save on shipping costs.
  • I would think twice about going to a stiffer spring. It will ride stiffer and beat up the trailer more. Springs break, its just fact. We used to break one once in awhile on horse trlrs and it was always empty when it happened.