It's funny to hear when someone tells you something is over rated! Especially when the one doesn't have the item and the ones that have the item tell you it was a great investment! Even funnier when he advises you to stand on the skinny pedal!! ASK guys that stand on the skinny pedal because they don't have traction enhancement in their XJ. If they truly stand on it and have been wheeling seriously for more than weekend trips to the mall chances are they will have a list of items they've broken and that's not limited to axles or u-joints. It would probably include output shafts and t-case cases. So when you feel the urge to stand on the skinny look in your wallet 1st and make sure you have Visa or a lot of cash if your running a 30 with bigger than 32/33 or a 44 with 35's and up. Now let mr clarify"stock axles and u joints and no lockers and truly standing on the skinny"! Any ways radius arms are fine. I am still running highly modified Ford radius arms since my 1st built XJ for the Hammers back in 1992. 8 1/2" lift locked 9"s with 44 outers on 36x15.50 MTZ's. I cut the arms, tubed, arched them, strapped them and Johnny jointed them! I love the simplicity of them. My van is 5 link with 1" heims so I have driven and owned every type of suspension including air bags, except for the elliptical type spring suspension. Seen them in action never could afford to try them! Even heims are getting been ridiculous! Use Johnnies at least you can rebuild them! Here's a pic of my easy 23 year proven radius arms. I just redid the trac bar from the stock Ford that had been cut down to fit. The new bar is in 1 1/2" stuffed with 1 1/4" solid round stock (a little over kill) with 7/8" heims because I've finally decided to go Hydro assist and wanted to free up space. I also made a steering stabilizer bracket off the top of the 9" housing which eventually will hold the hydro ram! (Neither item is in the pic).