Sagging coil springs?

Fordguy65 · 11-16-2009, 11:28 AM

I recently replaced my cut stock springs with NPD Contour 1" lowering springs. I think the rate is 480 lbs. I went with a softer rate than the 620 lb springs because this is my daily driver. When I first put them in the ride height was about perfect. However, I have been noticing lately my front tires have been rubbing a lot more. When I checked the gap between the tire and the fender the driver's side is much lower then the passenger side. I am only about 200lbs so I don't think my weight could done this.
Is this common with these springs? Could something other than the springs be causing this?
I guess my next task is to pull them out and measure them.
TIA,

gotstang · 11-16-2009, 11:40 AM

They can settle to their "real height" after a while. You might pull them and put some thick isolators on them to see if that will raise the front enough.

Fordguy65 · 11-16-2009, 07:50 PM

That is a lot of "settling". I guess that would explain why the driver's side is so much lower than the passenger side.
Would 620 lb springs "settle" less?

mavken · 11-17-2009, 08:37 AM

Quote:

Originally Posted by Fordguy65

When I first put them in the ride height was about perfect. However, I have been noticing lately my front tires have been rubbing a lot more. When I checked the gap between the tire and the fender the driver's side is much lower then the passenger side.

Did you measure ride height when you first put the springs in? What is the ride height on each side now? Best to park on a level surface and measure from the floor to the center of the wheel arch or from the floor to a point on the rocker panel. Shouldn't be much different from side to side. Check to make sure your springs are mounted properly in the upper spring pocket and the spring perch. Also take a look at the spring perch to make sure it isn't in a bind so as to lift the spring up. If all this looks OK then you may need to pull the springs to see if they are the same height when out of the car. If there's a problem then call NPD. They should be willing to exchange them.

Fordguy65 · 11-20-2009, 10:52 AM

Thanks mavken, I guess I am going to have to pull them out and measure the length. Also to see if there are any issues with the install. If they are the same length and the install looks good maybe I'll take Gotstangs advice and put in some thicker isolators and see where that puts me. Since I put in 4.5 leafs the rear is higher than it was so I raise the front about a 1/2" and it will still look right.
I was curious to see if anyone had problems with these particular NPD springs sagging. It does not look like it...
Thanks,

mavken · 11-20-2009, 01:07 PM

Post back and let us know what you find. You may want to take some pics of the installation (with tires on the ground if possible) and post them here so us "experts" can have a look. LOL

sellersrodshop · 11-29-2009, 03:57 AM

if you pull them out to measure & they are the same, swap sides with the springs & let the car down & recheck the measurements. if it's still high on the same side after swapping the springs to opposite sides, you know the problem lies elsewhere.