I did 2 inch kit. Aussie brand but clearly imported rebadged garbage... I'm. .... on jeep wrangler 2 door. Stupid. Shocks fail under 6 months and unloaded it's plain dangerous. Thank god for traction control. However loaded it does sit a bit lower and absorb a little more But loaded the overly powerful springs under pressure like a corner pothole or braking force the live axels to wander more making for a slightly less jarring but far more corrective wandering action severe oversteer or dependent on entry angle and road condition dramatic unpredictable non responsiveness and into oversteer immediately. This is not good. Light I get thrown and bounced on any non flat tarmac heavy I wander and get rebound from potholes that force the wheel back up of the road just with more vigour... Over sprung and shocks almost completely useless after only 6 months. On road. Light... Just bbar and winch. Hardtop. Sooo my question is... given on complaint three I began asking for numbers...rebound rating, spring constant rate, compression travel specs.. They have zero idea. I asked for legal. They don't have that either.. Lol... Question is how many people we know.. Family probably... That have died or being seriously injured due to products that frankly do not even have spec sheets or proper testing ie 4x4 heavy duty off road might actually spell... Unregulated. Given my circumstances ie rapid shock failure not fade failure and intense spring stiffening and spring rebound that actually launches 2 tonne off the surface... I find it likely 50 percent of people on rural roads installing rubbish lift kits especially farm 4x4s probably end up dead..ice diesel corrugation potholes and correction all become deadly.. Offroading by the way is impossible shake me to death and car gets hurt .. Any corrugation ANY and your gone also rock wheeling is impossible as stiff suspension just won't grip a climb no matter how soft the tyre. Flip over bounce bait on any inclines and cornering.. That's on road lol...Say the springs compressed 10mm for every 25mm of wheel travel and that there is 100mm of wheel travel up to hit bump stops when at std height. That means the spring would compress 40mm at std height or 60mm on 50mm lift before hitting bump stops. 60/40 = 1.5 or 50% more force (or weight) to hit bump stops with the same rate spring which of course would have to be longer to provide the lift. You would need a spring 1/3rd lighter to get the same amount of suspension travel. Probably very nice for rock hopping but not suitable for road travel.
It's stupid. No. Dangerous. Unless you contantly have 1 tonne on board. Don't lift. Jeep springs are progressive5/8ths wire. IM springs 7/8 non progressive apparently unpredictable when loaded and have almost zero droop when car is dropped back down... No spec sheets and the company appears to be not a company but privately owned and without a legal team... They need one of them I recon.
And we need to know how many have died for a cheapo lift kit. Literally.