Looking at Summit lowering springs and Eibach pro and sportline springs. Any other brand I should look at. Going to replace the 27-28 year old springs when I replace the shocks and struts on my 87 IROC project. Any problems with going with lowering springs?

 

I have always heard good things about Vogtland. I am using them but I have not driven the car. I have had eibachs on third and 4th gens but I thought they were alittle harsh.


Good price as well
http://www.foundersperformance.com/c...ird-1982-1992/

Of course replace other suspension pieces as well if they are worn.

 

What springs are best for you really depends on what you are going to do with the car.

IIRC, the vogtland springs are a dual rate. Some of the coils collapse creating a number of dead coils which will increase spring rate of the remaining coils but there is only so much room in there and i would be concerned about coil bind if used for autoX or road racing.

Linear/constant rate springs are best for handling. The other kind is progressive/varible rates. Eibach has linear fronts and progressive rears. Not a bad option depending on what you are going to do with the car. I would choose Eibach over Vogtland if i had to pick from those two for my car, but keep in mind that my opinion takes into consideration what I use my car for.

 

Just going to use it to drive around town and attend local shows.

 

So do you prefer the lowered or the slammed look?

 

Just lowered so I don't drag the nose and pipes all the time.

 

If appearance is what's most important to you, then it's not a big deal which springs you use. It makes more of a difference if your modding for performance. Good call though, these cars look great lowered an inch or two. Eibach is a nice choice.

Here is a GREAT thread for viewing all the different springs. https://www.thirdgen.org/forums/susp...d-3rd-gen.html

 

And be sure you "index" the spring!