I am looking to replace my 4” coil springs with a better riding quality set. I currently have a 4” lift installed in my JK. I am a big tera flex guy but it doesn’t seem like they make duel rated 4” springs. I’m actually coming to find out they don’t make much 4” coil springs for the Jeep Jk. I was wondering if I could get a way with installing 4.5” coil springs which seems to be a more common size these companies make; suggested brands, rock krawler triple rated springs, tera flex duel rated springs and metal cloak duel rated springs.

 

I've always been happy with the 4" evo plush ride springs. I've tried others and, for me, I like the evo springs the best for my setup.

 

If looking to improve ride quality go down in size 3.5". But also what tires and size are you running and what pressure.

 

I've been running MetalCloak 3.5" coils for 6 years or so. Good ride when compared to the OME HD coils they replaced, but have not tried Teraflex coils for any sort of comparison there.