Guys,
My Dart has got Air shocks on the back and some weird (not correct) leaf springs. I want to get rid of the shocks and springs and replace them with something a bit more suitable as the ride is BAD BAD BAD!!!
Ive got 15x7 Cragar SS with 225/70/15 on the back so need springs with a good bit of lift on them. Maybe SS springs??
Has anyone got any opinions on this or ideas???
Cheers
Nick
67 dart 4dr rear suspension??
Moderator: Moderators
SS springs are really only worth the spondoolies if you are thinking of bunging it up the 1/4, and you need a good engine combo/ front suspension to take advantage. Just go for standard or HD springs if you're cruising! 
Are you sure they are not the right springs that have sagged? If so and they are not too rusty you can have them re-arched and that will do you fine. BIN THE GAS SHOCKS! They will break your body! (The car's body! 
)
Are you sure they are not the right springs that have sagged? If so and they are not too rusty you can have them re-arched and that will do you fine. BIN THE GAS SHOCKS! They will break your body! (The car's body! )<center>
The name is Kev, nowadays known as Kevvy or Pommie C***!</center>
The name is Kev, nowadays known as Kevvy or Pommie C***!</center>
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Anonymous
The springs are only 4 leafers and seem to have some strange looking helper spring on them. They are pretty knackered tbh!!!
I cant get rid of the air shocks until ive replaced the springs i dont think but tbh ive not let all the air out to see how low its sits but with the shocks up as far as they are now there is only just enough clearence for the rear tyres.
I cant get rid of the air shocks until ive replaced the springs i dont think but tbh ive not let all the air out to see how low its sits but with the shocks up as far as they are now there is only just enough clearence for the rear tyres.
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Anonymous
I've ot those on mine. Are they really that bad? I run mine deflated 90% of the time anyway I only pump them up if the car's loaded as the Bananarama! the arches.
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Anonymous
SS springs bought new now are useless, they are not made by MP, Monoleafes cornered the market so the multi leaf sales went down the toilet, to stay competitive on price they are now made from the cheapest steel possible in the cheapest country, which right now is Mexico. You'd be very lucky to find a multi leaf spring manufacture in the states
They are still more expensive than monos at least here, partly because of the rediculous weight and they do not work half as good.
Take a look at a multi, you will see there is only one very thin leaf connecting the rear end to the car, this thin leaf is one of the causes of spring wrap, it's just not thick enough, this tiny top leaf then needs a pinion snubber to try and keep it all under control. The problem with a pinion snubber is the point of contact isn't far enough forward so any gap still equals a fair amount of wrap before it's stopped.
If you look at monos the front section is huge and really does nothing for suspension at all, this front section is more comparable to a ladder bar in so much it attaches the rear end to the car much better, wrap is pretty much non exsistent, the rear section of the spring is where all the suspension is done.
One other thing to note with monos is on a race car that hooks well it's advisable to change the front spring hanger and triangulate the new one to the frame as the instant load on this is much higher and there's a very good chance the stock one will fold at some point, most people do this anyway but with monos it's most important as there's more of that costly HP and torque put to the use it was intended for and not wasted twisting the rear end backwards.
Anyone considering fitting new multies on any car is wasting £££ unless the car runs in stock appearing. SS springs and race cars, maybe 35/40 yrs ago, now, superceded by better.
I'll now wait to be shot,
They are still more expensive than monos at least here, partly because of the rediculous weight and they do not work half as good.
Take a look at a multi, you will see there is only one very thin leaf connecting the rear end to the car, this thin leaf is one of the causes of spring wrap, it's just not thick enough, this tiny top leaf then needs a pinion snubber to try and keep it all under control. The problem with a pinion snubber is the point of contact isn't far enough forward so any gap still equals a fair amount of wrap before it's stopped.
If you look at monos the front section is huge and really does nothing for suspension at all, this front section is more comparable to a ladder bar in so much it attaches the rear end to the car much better, wrap is pretty much non exsistent, the rear section of the spring is where all the suspension is done.
One other thing to note with monos is on a race car that hooks well it's advisable to change the front spring hanger and triangulate the new one to the frame as the instant load on this is much higher and there's a very good chance the stock one will fold at some point, most people do this anyway but with monos it's most important as there's more of that costly HP and torque put to the use it was intended for and not wasted twisting the rear end backwards.
Anyone considering fitting new multies on any car is wasting £££ unless the car runs in stock appearing. SS springs and race cars, maybe 35/40 yrs ago, now, superceded by better.
I'll now wait to be shot,
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Anonymous
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Dave-R
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Mono leaf springs are good on the track but the can't be as good for ride comfort on the road.
The stock MoPar HP rear leaf spring has the axle mounted not in the middle like some other makes but towards the front of the spring.
They then use multi-leafs to beef and stiffen the front section of the spring as this is where you need it on a drag car. But they then used fewer and longer leafs on the back half of the spring to give ride comfort.
So the Mopar springs are springs of two halves really with a dual function.
A mono-leaf has the same spring rate along its length (if that is the way to express it).
I would consider mono leafs for my car because comfort is not my main consideration. If you want a stock type of ride stick to the multi leafs.
The stock MoPar HP rear leaf spring has the axle mounted not in the middle like some other makes but towards the front of the spring.
They then use multi-leafs to beef and stiffen the front section of the spring as this is where you need it on a drag car. But they then used fewer and longer leafs on the back half of the spring to give ride comfort.
So the Mopar springs are springs of two halves really with a dual function.
A mono-leaf has the same spring rate along its length (if that is the way to express it).
I would consider mono leafs for my car because comfort is not my main consideration. If you want a stock type of ride stick to the multi leafs.
Handled very well indeed 
