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the_bear_II's avatar
the_bear_II
Explorer
May 31, 2013

Spring Replacement

One of the leaf springs broke just as we turned on to our street on the way home form our last outing. I decided to replace all 4 springs since the 5th wheel is 19 years old. I ordered the parts from Arrow Trailer Supply in Ontario, California (knowledgeable, very good price and customer service).

I'm a shade tree mechanic and have amassed a large collection of tools and equipment over the years. This was a good opportunity to use those tools and gain a feeling of accomplishment if I was successful in changing out the springs. Arrow Supply quoted a price of $312 to do the work but it would mean I would have to brace the axle with the broken spring and then tow through Los Angeles traffic about 30 miles to the shop. It was tempting but the Mr. FixIt in me decided I could do it.

Last Saturday with full intentions of replacing the springs on both sides, repack the bearings and have everything done before days end, I went to the storage lot. I had to use a stack of 2X4s three levels high to get my jack stands to stabilize the frame.

Long story short....it took the whole day to do one side and I was so sore and tired on Sunday that I decided to wait until this Saturday to do the other side. I'm thinking the $312 is a pretty good deal.

But my Mr. FixIt is still telling me to think of the pride and accomplishment when both sides are done and I can say "I did it myself"....

Saturday you will find me under the streetside of the 5th wheel.

17 Replies

  • I replace mine but it wasn't that hard.I got the 6 point leveling system and I pick up the hole FW.
  • john b wrote:
    Vulcaneer wrote:
    Are you sure you marked the location, before you started? If not, you are probably going to need an alignment. From your description it sounds like you did both springs on one side. Then will do both springs on the other side. You should do one axle and then the other. That way you could save the alignment.



    I guess I don't understand this statement as all the mounts are predetermined..


    No, they are not. The spring perch has a pin. The spring leaf has an over sized hole. This is so there can be perpendicular adjustment in the axles to the hitch socket/kingpin. The front axle is aligned to the center of the hitch socket (TT) or king pin (5'r). Then the rear axle is aligned to the front axle. Or can be laser aligned to the socket or king pin.

    If you replace springs on both ends of one axle, you can use the center measurement of the other axle...which has a position that has remained constant. This can be done by cutting a 2x4 to the proper length and wedging it between the axles on one end. Then move it to the other end and set the other axle so it holds the board between. Use a jack to move the axle away, or a come along to move the axle closer.

    If you replace both springs on one side of both axles, unless you mark the location of the axle, you have lost your perpendicularity to the socket/king pin. Not a big deal on one axle. But if a tandem axle, then the other axle will not be in alignment and will fight the other axle. One or two tires will wear very prematurely.

    So once the springs are changed, best to get a good alignment. If not putting much mileage on each year, you could go some years before a problem with the tires. But there will be a problem at some point. But you really don't know if it will be sooner or later, until it is too late.

    Just want to advise the OP that just changing springs, does not guarrantee there won't be other issues downstream.

    Maybe view this thread
  • Vulcaneer wrote:
    Are you sure you marked the location, before you started? If not, you are probably going to need an alignment. From your description it sounds like you did both springs on one side. Then will do both springs on the other side. You should do one axle and then the other. That way you could save the alignment.



    I guess I don't understand this statement as all the mounts are predetermined..
  • Are you sure you marked the location, before you started? If not, you are probably going to need an alignment. From your description it sounds like you did both springs on one side. Then will do both springs on the other side. You should do one axle and then the other. That way you could save the alignment.
  • I have learned that I am not as young as I use to be. If I think it is a day I prepare for three days. I did mine last year and it took 2whole weekend days and a couple week day evenings to replace all springs and equalizers and bearings and brakes. It also didn't help that it was in the low hundreds while doing it.
  • What you need is what my wife gives me....medication......R&C(rum & coke)..... :)
  • With my vast equipment and know-how I could in twice the time.