74 Duster advice please on raising rear 2 in

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Steve Agrella

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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
 
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.
 
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.
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.
 
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
 
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

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.
 
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
 
Stock 15” x 7” 4.25” back space
275-60R-15 tire.
I did put a 1” block in to lower the car.
 
Ny87vQ.jpg
 
Crager's have a goofy backspace for mopars.
My guess with those, you will hit the outer 1/4 panels.
 
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