Hi all. Just overhauled drum brakes on my 99 with a 8.25 rear axle. The hardware kit came with two blue springs that I wasn't sure what to do with. no similar looking spring was a part of the assembly when i took the brakes apart so I didnt really know what to do with them. got two up top and one at the bottom, where should these go and what are they for? ps everything seems to work fine without them.