If it's the 7" then they actually fit anything JUDY up to 80mm I think, RSTs, and Quadra21's and probably other they will fit in and SpeedSprings official line is you just use a spacer or bit of elastomer to make them a bit longer. Hope that help. Though I forget which spring rte the blue is, number would tell you.DegsUk":1qfzv64d said:The packet is rather perished but I'm going to measure when im finished work