Picked up the Ford Racing J springs M5300-J, made by Eibach in a Pro Kit box. (good price)
The fronts are 650lbs and the rears are 570lbs.
The numbers on the springs are 3510.301 Fronts and 3590.002 rear.
The Eibach pro kit # is 3590.140.
Are these J springs the same springs the same as the Eibachs but with a Ford specific part #?
Also, are they linear or progressive?
The fronts are 650lbs and the rears are 570lbs.
The numbers on the springs are 3510.301 Fronts and 3590.002 rear.
The Eibach pro kit # is 3590.140.
Are these J springs the same springs the same as the Eibachs but with a Ford specific part #?
Also, are they linear or progressive?