Front Suspension Coil Spring problems of the 2007 Jeep Wrangler

I bought a used 2007 Jeep Wrangler 2 dr, 4x4 soft top, in oct 20014. It had 82,000 miles. I had no previous buying on this model. I drive mostly highway miles in north east ohio. I drive almost 90 miles, round trip, per work week. I noticed a slight bounce in the front end, suspension during highway posted speeds of 65 miles per hour. I changed the the shocks 4 ea. After my front straight axial began to bounce up and down, well the bounce was worse, after a short period of trying to handle road condition, even changing route, to avoid the bounce, at highway speed 60 miles and under, it was cold out 40 degrees, heavy traffic christmas time, rush hour, my Jeep went into a radical bounce called " death wobble " as noted in the Jeep world, not noted by Jeep, I had three, in the row, one worse, than the one before. The bouncing caused a transmission cooling line to dis-large, from a sited coupling, to the engine radiater. The lose of 4 quarts of transmission fluid to spill on the 5 lane highway. I noticed a lose in speed, smoke and rpm advance, from 1800 to 4000 rpms in less than a minute. Now I had to navigate my way through 4 lanes of heavy 60 miles to 75 mile an hour traffic, with out getting hit. Within two miles I managed to pull over to the right shoulder. I had a flashlight, I left the engine running, because it was getting dark out, I went up front and looked at the front end and saw transmission fluid. I shut off the engine, and called for a tow. 2 hours later, plus 77. 00 dollars, I went home. I live on a budget. I wrote Jeep, but without a word, from them. So I looked at my owners manual, and saw nothing about changing shocks, coil springs at miles maintenance service intervals. I noticed your name, so I contacted you for help. Luckily I wasn't hit or worse. I'm 62 years young, and have driving experience. I hope this helps.