super stock spring question

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elitesrock2

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Do the super stock springs from mopar performance bolt in directly or do they require modifications? also how much higher is the ride height with 2 right hand springs used to not have the odd stance. putting springs on a 69 dart and want it to have alot of rake. Thanks
 
elitesrock2 said:
Do the super stock springs from mopar performance bolt in directly or do they require modifications? also how much higher is the ride height with 2 right hand springs used to not have the odd stance. putting springs on a 69 dart and want it to have alot of rake. Thanks
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The only issues that I've come across, are some of the slant 6 cars had 1/2" bolts for the front spring hanger, where the Super Stock springs are made for the V-8 5/8" thread. You can drill out the holes in the bracket with a 5/8" drill bit, then go to a good hardware/fastener store and get some grade 8 5/8" bolts and nuts to replace the old 1/2" ones. Take the old ones to find the same length, and remember to put the nut on the outside of the spring/hanger. If you put the nut on the inside, the bolt may hit the frame and cause issues installing the springs. Look at how the bolts and nuts on the front and rear of the spring are and get pictures before taking it apart, so you know how it goes back together...

The super stock springs will raise the back about 3"...

Ask @Ddaddy to post the before and after pictures of when he did his. He has a good set of them to show the difference...
 
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elitesrock2 said:
Do the super stock springs from mopar performance bolt in directly or do they require modifications? also how much higher is the ride height with 2 right hand springs used to not have the odd stance. putting springs on a 69 dart and want it to have alot of rake. Thanks
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krazycuda is exactly right here.........
You will love them if you want the extra rake, that's exactly what i wanted and i love it on my '74 Dart Sport.
You will need the longer shocks to go with them too, i got mine from the Mopar Performance catalog.
I honestly thought they would have a very harsh ride, but they're stiff, not harsh.
And they're pretty cheap to boot!
 
Dartnut said:
krazycuda is exactly right here.........
You will love them if you want the extra rake, that's exactly what i wanted and i love it on my '74 Dart Sport.
You will need the longer shocks to go with them too, i got mine from the Mopar Performance catalog.
I honestly thought they would have a very harsh ride, but they're stiff, not harsh.
And they're pretty cheap to boot!
Click to expand...
I`d use 2 drivers side springs if I were going that route, and I may. the complete caltrac set up seems a little rough riding. two pass side springs will really put you car in the air.
 
it may have raised the car 2-2.5 inches.
they are the 2800lb a body springs
 
I just put the SS springs on my GTS last weekend. I used the 3000 lb springs P3412002 passenger side and P3412003 driver side. I also used the longer KYB shocks with them. I like the new stance and the ride is fantastic, exactly what I wanted!

Here are some pics...

Rear SS Springs.jpg


New SS stance A.jpg


New SS stance B1a.jpg


New SS stance 1b.jpg
 
elitesrock2 said:
Do the super stock springs from mopar performance bolt in directly or do they require modifications? also how much higher is the ride height with 2 right hand springs used to not have the odd stance.
Click to expand...

They bolt in directly and they do not have an odd stance. Both sides have exactly the same ride height. It's just that the stiffer spring on the passenger side helps keep the back end level and planted firmly under acceleration torque. I have a 3.91 sure-grip rear and 380 hp/420 lb-ft tq and I can tell you that the rear plants nicely and stays level under heavy throttle. During normal driving there is no noticeable difference in the rear from one side to the other. You would only notice it if you are trying to be a corner carver...in which case you really should be using a 4-link rear set up instead of leaf springs anyway.
 
I ran super stock spring briefly. Right side sits higher. Not a lot, but it does. And they're stiff, and that's coming from a guy that runs 1.12" torsion bars. No point running them if you're not setting up a street/strip car. If you are planning on a street/strip car though they're a good, relatively inexpensive way to get decent straight line traction.

4 links aren't really the magic bullet for handling either. The triangulated set ups, like most of the 4 link kits for these cars, aren't really that adjustable. They fit better than a true four link in these cars but they're less adjustable. A three link would be better as long as the horsepower isn't crazy, but like a true four link they don't fit all that well with these chassis' unless you're willing to move some things around. Leafs aren't perfect by any means, but the fastest corner carving mopars are still running them.
 
I can only tell you that the 3000 lb Super Stock springs (P3412002 passenger side and P3412003 driver side) I just installed on my '69 Dart GTS last weekend have exactly the same height on both sides (within 1/16").
 
Ddaddy said:
I can only tell you that the 3000 lb Super Stock springs (P3412002 passenger side and P3412003 driver side) I just installed on my '69 Dart GTS last weekend have exactly the same height on both sides (within 1/16").
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most sit higher on the right rear w/ 002-003 springs, or they used to. are they still made in mexico ?
 
famous bob said:
most sit higher on the right rear w/ 002-003 springs, or they used to. are they still made in mexico ?
Click to expand...
Mine did sit higher on the right side as well, i adjusted the torsion bar on the driver's side up a bit to compensate, and yes, mine were ''Hecho en Mexico''.
Running the 002 and 003 springs also.........
 
famous bob said:
most sit higher on the right rear w/ 002-003 springs, or they used to. are they still made in mexico ?
Click to expand...
Yep, these were made in Mexico. I've measured the rear in 6 different places and the height is the same on both sides. The torsion bars are adjusted for level height in the front and both sides match. I can't really say what, if anything, is different about my car or these springs, but that's what it is.
 
The only things I can think of that might be different on my car is that it has the factory front sway bar and I retrofitted a set of fender-firewall braces from a later model A body. I also have KYB gas shocks all around. Maybe together they are making the difference, IDK.

GTS Labor Day 1a.jpg
 
Ddaddy said:
The only things I can think of that might be different on my car is that it has the factory front sway bar and I retrofitted a set of fender-firewall braces from a later model A body. I also have KYB gas shocks all around. Maybe together they are making the difference, IDK.

View attachment 1714980432
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great. I never saw one set level w/ s.s. springs. feel fortunate
 
famous bob said:
great. I never saw one set level w/ s.s. springs. feel fortunate
Click to expand...

I totally agree. All the cars I've seen with SS springs sit higher on the passenger side rear.

Ddaddy said:
IDK, it's not just my car that sits level with SS springs...
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What makes you think any of those cars are actually level? They're just pictures off the internet. You have no idea if they're sitting on flat ground, or if the camera angle is tricking you into thinking they're level. The first picture actually shows the car higher on the drivers side, but look at the ground that things parked on, nothing even remotely flat. In that 3rd picture with the blue car if you look at the wheels you can see that the right wheel rear is not in the same plane as the rest, that car is sitting in a hole to look level. The perspective in the 2nd picture is the only one that would actually show you if the car was level across the back, and again, just because it's parked on asphalt doesn't mean the ground is level. You need a measurement to confirm. Heck, same goes for the measurement. If the car isn't parked on flat, level ground not even the measurement means anything. The measurements on my Duster change by an 1/4" on some corners if it's parked in my driveway vs. parked on the slab in my garage. Parked on the slab it's within a 1/16" side to side. Parked in the driveway it's usually off by at least a 1/4" depending on where it's parked, how the wheels are turned etc.
 
72bluNblu said:
I totally agree. All the cars I've seen with SS springs sit higher on the passenger side rear.



What makes you think any of those cars are actually level? They're just pictures off the internet. You have no idea if they're sitting on flat ground, or if the camera angle is tricking you into thinking they're level. The first picture actually shows the car higher on the drivers side, but look at the ground that things parked on, nothing even remotely flat. In that 3rd picture with the blue car if you look at the wheels you can see that the right wheel rear is not in the same plane as the rest, that car is sitting in a hole to look level. The perspective in the 2nd picture is the only one that would actually show you if the car was level across the back, and again, just because it's parked on asphalt doesn't mean the ground is level. You need a measurement to confirm. Heck, same goes for the measurement. If the car isn't parked on flat, level ground not even the measurement means anything. The measurements on my Duster change by an 1/4" on some corners if it's parked in my driveway vs. parked on the slab in my garage. Parked on the slab it's within a 1/16" side to side. Parked in the driveway it's usually off by at least a 1/4" depending on where it's parked, how the wheels are turned etc.
Click to expand...
For 2 reasons...

1. I'm sure my car isn't the only one in the world that sits level on SS springs.

2. I'm an expert at graphic images, photography and photoshop and can tell a lot from a picture. Those cars are damn close to level and if they aren't, they are not off by much.

Point is, my car sits perfectly level on a level pad measured in 6 different places...and it isn't a magic machine.
 
Cars with SS springs aren't off by a ton. 1/2" or so usually. Enough to notice the car sitting at an angle, but nothing crazy. And I stand by my analysis of those pictures, two of them obviously are not on level ground.

As far as your car, who knows? The MP springs made in Mexico don't exactly set the bar really high from a quality control standpoint, you may just have a flatter than "normal" passenger spring. And of course, 47 year old unibodys aren't known for their exacting quality control either. Nothing magical about off kilter unibodys or less than stellar MP springs.

I still wouldn't recommend SS springs for someone that wants their car to sit level side to side in the back, regardless of a few exceptions. And I don't doubt that there are exceptions exactly for the reasons I already posted, there are no guarantees with 40+ year old unibody cars. But I would still expect most SS spring equipped cars to sit higher on the passenger side, that's how they're designed.
 
Wow!

Well, my cars sat level.

Ducking and running....
 
Adjusting cross weight and and a few miles on the car does wonders for getting the car level.
 
My 002 and 003 springs sit level as well. They don't have a lot of miles on them so that may change but for now they are level.

Cley
 
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