It seems that Rockjock has updated the front springs they include in their “4 inch lift kit” and it tripped up my dad who just ordered one. Thought I’d let y’all know. In the past, when you would buy the 4 inch lift kit, the front springs you would get are the CE-9132FP (22.6” free length/70lb rate). They have now relabeled these as “5 inch lift springs”. When you buy their “4 inch lift kit” they started including a shorter front spring that is CE-9132F1P (21.6” free length/70lb rate). Obviously true lift height is all relative to the weight of your vehicle and the lift heights they assign as names for the springs are just based on an average or whatever vehicle they used. For instance I have longer ones and I get 4.5” of lift out of them. That means if I put the new coils on I would only get 3.5” of lift out of them since they are an inch shorter and same spring rate. Luckily you can still buy the longer springs separately. Just make sure you check part numbers.
https://www.rockjock4x4.com/CE-9132FP-JK-4D-4-Lift-or-TJ-LJ-JK-2D-5-Lift-Front-Coil-Springs-Pair
https://www.rockjock4x4.com/CE-9132FP-JK-4D-4-Lift-or-TJ-LJ-JK-2D-5-Lift-Front-Coil-Springs-Pair