Quote:

I think most of the springs available today from a wide variety of companies are really made by only a few actual spring companies.



you can bet on that, as are retainers and many other items. in some cases the manufacture may not even normally be associated with or have a commonly know name in the aftermarket. you can bet that all the companies selling springs don't have the equipment to wind and heat treat springs. years ago i was researching retainers and noticed at that time k-motion retainers were the dimensionally exactly the same as manley only the specs as listed were reversed.