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Add Leaf Spring?

Discussion in 'Truck & Equipment Repair' started by PeteB4, Apr 13, 2008.

  1. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    2000 F350 SuperCab Front axle 4400. I want to beef it up to at least 5200 maybe 6000. What does it need for a leaf spring(s)?

    The rear is fine 6830. I just want to be able to carry more in the front... say 850#. Maybe lift it some too. The rear sits quite a bit higher.

    Thanks!
     
  2. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239

    springs

    add a leaf in the front and 1 in the rear ! it will lift it and give more capacity .:waving:
     
  3. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    Just 1 in the front? What will that increase the weight to? Is there a site I can go to and see how much each spring adds?
     
  4. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239

    spring's

    there is a limit to how many leave's you can put in a factory spring ,a tapered leaf has more capacity than a flat leaf . they do make some hd version that are 4 leaf but they would be monster's .i think the sri number is 43-770hd .
     
  5. Niteman9

    Niteman9 Senior Member
    Messages: 165

    What you need to do is get a set of X-Code Springs from Ford Dealer. Also replace the U bolts and nuts when you do it. These are the springs which came on the F-450 and F-550. They are 6000 lb springs.

    Here are the part numbers with quantity needed.

    (2) 2C3Z-5310-AF Springs

    (4) F81Z-5705-ZA U-Bolts

    (8) N805480-S426 Nut

    They are cheaper if you order online.
     
  6. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    Niteman and others, Thanks for the replies. I am going to look for those X springs online right now!
     
  7. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,552

    You are increasing the spring stiffness but NOT the axle capacity. The 6000 lb axle has bigger ball joint to handle the extra load, bigger tierod ends, probably a bigger axle tube or have shafts and bigger brakes. The truck frame is probably bigger too. Theirs more to a front end capacity than springs.
     
  8. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    Plowmeister, would it be wise to upgrade everything you mentioned...sounds like it could be costly but important. I only plow six drives, but I don't want to beat on my truck more than I need to.
    I priced out the X-Code springs, bolts, etc. online 422 plus tax and shipping at newfordparts.com.
    How much would axle, tierods, etc run?

    Thanks!
     
  9. carl b

    carl b PlowSite.com Addict
    from Ohio
    Messages: 1,330



    each 1 adds 800 pounds i think so 1600 total.. thats what the black smith told me when i did mine. i did two on the back only.. i have a chevy no leafs in the front.
     
  10. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,552

    no it would not be worth it to upgrade. Just be aware that while the truck will sit better (level) you have not increased the strength of the F end, or its stopping power.
     
  11. Niteman9

    Niteman9 Senior Member
    Messages: 165

    The snow plow prep package on the F-250 and F-350 used the X-code Springs and the same axle as the Non snow plow prep. With the snow plow prep the rating was 6000.
    But ya it is true hang 800 to 1000 pound on the front will wear out front end parts faster.
     
  12. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,552

    OK I learned something :eek: I ASSUMED they used bigger axles in bigger trucks. Why buy a bigger truck then just add springs:)
     
  13. Niteman9

    Niteman9 Senior Member
    Messages: 165

    I do believe the 450 and 550's have differant hubs and brakes but the axle is the same.
     
  14. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    That's what I was hoping I could do. Anyone have any idea how long it should take the shop to do the springs?

    I'll get a price from the spring shop and the ford dealer.
     
  15. Niteman9

    Niteman9 Senior Member
    Messages: 165

    If you walk into a ford dealer the springs retail for a little over $200 a piece. Another hundred or so for the U bolts and nuts. You could save about 100 ordering them on-line but then there is shipping. Installation will run between 150 and 250. Should take them more than a couple hours to install. Powerstrokeshop.com has good prices.
     
  16. Niteman9

    Niteman9 Senior Member
    Messages: 165

  17. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    Niteman and others, thanks for all the responses! This is a great site.
    Is there a difference between adding a leaf spring and getting the X-Code springs? Which would make more sense?...if there is a difference.
     
  18. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56


    Bump

    Thanks!
     
  19. Niteman9

    Niteman9 Senior Member
    Messages: 165

    I would get the new X-Code springs. I think they may ride a little better but not sure. From what I have seen add a leafs will only save you a little money.
     
  20. PeteB4

    PeteB4 Member
    from Maine
    Messages: 56

    Niteman9
    thanks for the advice. I will start saving this summer and get the x-codes before the next snow!