I'm hoping someone can give me a distance from spring perch to spring perch on the rear from an RE 5.5" long arm kit. I should have measured this before, but I didn't. Uncompressed, they are about 18.5".

What is the length while at rest with normal load on vehicle? Thanks for any help.

I just got about 13.5" from lip to lip on the spring perches. That was using my best guestimate at the centerline of the axle, since the measurement is going to vary front to rear on the perch because of the pinion angle.

FYI, these springs are TALL - if your Jeep is pulling a nose dive with these coils on, it is because the rear coils are so tall. I have about 300 lbs of weight behind the front seats on my Jeep, which is just enough to make it sit level.

Hope this helps.