hi all does any one know if these moog springs are any good for an 89 gta mog-5662,mog-5665 ,mog-5608,mog-cc635 this is what summit emailed me with but i dont no which would be best to go with

 

The MOG-5662 is stiff front springs, good for performance, and the MOG-5665 are the rear springs that I think most cars came with.

The MOG-5608s are really soft front springs, not performance, and I'm not sure of the MOG-cc635s.

I just went with MOG-5660 front springs (not as stiff as the 5662s) and MOG-6377 rear springs (stiffer than the 5665s but have lower installed heights). All together, the car rides nice and tight, is pretty comfortable over moderate road conditions, and sits about a 1/2 inch lower than the 5662 front and 5665 rear springs would have it sitting.

 

hey thanks for your quick reply big help thanks

 

You may find some useful into in the following link:

https://www.thirdgen.org/forums/susp...ring-rate.html

JamesC