Eric's85TA

iTrader: (4)

I went to O'Reilly's today and had every intention of picking up the 5665 springs for my rear, but then I had them look up springs for an 88 GTA, and they came up with 5709. Here is a link to a page where I found the spring specs. Moog Coil Spring - Suspension parts

It tells spring rate, height, etc. The 5709's look to be far stiffer with a 239 spring rate vs the 107 spring rate of the 5665's. Install height is the same, but as far as free height, the 5709's are over an inch shorter, and the coils are made of thicker metal. Also, the 5665's say they have one tangential end and 1 pigtail end, whereas the 5709's have 2 pigtail ends. Does anybody have any experience with these 5709's to advise me as to how these will fit, having a different type of end than the other spring. Also, do they just have it wrong in their computer, as these are so much stiffer, or are these actually equivalent to WS6 springs?

Thanks,
Eric

xpndbl3

iTrader: (5)

you can't run two pigtail ends, since one end has to be larger to fit into the top spring pocket.

Eric's85TA

iTrader: (4)

Thanks. I suppose that makes my decision easier. I wonder why it is listed in their computer.

Sonix

iTrader: (1)

cc635 is the other choice.