RockJock’s 4″ front coil springs that are included in our Johnny Joint® JK 2-door suspension systems, but may also be used in TJ/LJ/JK 4-door applications where 1″ less spring height would be ideal. These springs may also be used in combination with our CE-9132F to address vehicle lean issues. These springs are a dual rate with a combined rate of 70lbs. and a free length of 21.6″. Gloss black powder coated finish. If you need help choosing the correct springs for your Jeep – just call the RockJock sales staff!