74 Duster advice please on raising rear 2 in

Discussion in 'Suspension, Steering and Chassis' started by Steve Agrella, May 16, 2018.

  1. Steve Agrella

    Steve Agrella FABO Gold Member FABO Gold Member

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    My car is sagging in the rear had the front raised 1 inch because my headers were hitting the road.
    Don’t want shackles or air shocks can any anyone suggest how to raise the rear and wher to get parts on the cheap, thanks
     
  2. 72bluNblu

    72bluNblu FABO Gold Member FABO Gold Member

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    You can add a leaf spring to the current spring packs, have the springs re-curved by a spring shop, or buy new springs. Those are pretty much your options if you take air shocks and lift shackles off the table, which you're right in doing as those are just temporary band aids that will damage your car in the long run.

    The problem with adding a leaf is that you're upping the spring rate too, so you may not like how the car rides. How much you add to the rate depends on the length and thickness of the leaf you add, and where in the pack you add it, so your results can vary. Re-curving is good if you have a spring shop local to you that will do it, but how long it works can vary. They're old springs after all. New springs are by far the best way to go, but, also the most expensive. ESPO (springs n things) sells good quality leaf springs at pretty decent prices. They also sell springs with different arches to them, ie, +1", +2" etc. If you go that route, remember that your current springs have sagged, so, you probably don't want +2" springs, as they'll likely lift the car 3" or 4" from where it actually sits now. You probably just want stock or +1" springs.
     
  3. Lee Robinson

    Lee Robinson FABO Gold Member FABO Gold Member

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    Check General Spring. I have a 64 Fairlane, I got their stock rear springs for it. Raised rear of car 1.5-2 ". They had another spring choice that would raise it 2.75 ".
    They may have the same option for Mopar. I believe the springs with polyurethane bushings included were about $140.00 each.
     
  4. teringer

    teringer ase master hall of fame

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    go to a spring shop and buy just the main leafs and get two new center bolts , cut the eyes off the old main leafs install the new main leaves over the old modified ones and if you still have funds have them reached this is the cheapest way . 2 leafs and 2 bolts have done it when I as younger and funds were tight
     
  5. 72bluNblu

    72bluNblu FABO Gold Member FABO Gold Member

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    Right, that will work, but as I said before you've increased the spring rate by doing that.

    The spring rate of the old springs doesn't change as they age, just the arch. So the ride height changes as the springs sag, but the spring rate stays the same. Increasing the rear spring rate from stock is ok to a point, but if you add too much the car won't ride well. And just adding leafs you don't have a good idea of what you're doing to the spring rate.
     
  6. Steve Agrella

    Steve Agrella FABO Gold Member FABO Gold Member

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    Going to take it to a spring guy out here that makes springs, he’s been doing it for 40 years said he can build me a new set of springs for $450 installed
     
  7. sireland67

    sireland67 Well-Known Member

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  8. Steve Agrella

    Steve Agrella FABO Gold Member FABO Gold Member

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  9. sireland67

    sireland67 Well-Known Member

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    Stock 15” x 7” 4.25” back space
    275-60R-15 tire.
    I did put a 1” block in to lower the car.
     
  10. sireland67

    sireland67 Well-Known Member

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    Ny87vQ.jpg
     
  11. Steve Agrella

    Steve Agrella FABO Gold Member FABO Gold Member

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    The 275 fits in the stock wheel well, that like 10 ins wide with no problems.
    I just ordered crager 15 x 8
    thats looks great thanks for taking the time to share that with me
     
  12. sireland67

    sireland67 Well-Known Member

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    Crager's have a goofy backspace for mopars.
    My guess with those, you will hit the outer 1/4 panels.
     
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    • Steve Agrella

      Steve Agrella FABO Gold Member FABO Gold Member

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      Backspace is 4.125 only 1/8 shorter than yours
       
    • KENTON

      KENTON Well-Known Member

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    • toolmanmike

      toolmanmike FABO Staff Staff Member FABO Gold Member

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      • Dusterdenovo

        Dusterdenovo Contentedly Old School FABO Gold Member

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        Call ESPO and talk to Laura. She knows everything about springs for old Mopars. Seriously.
         
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        • rumblefish360

          rumblefish360 so close yet so far away

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          THIS! ^^^^^^
          THIS!!!!! ^^^^^^^^^^
           
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