To all SX4 owners I'm pretty sure you might run into this problem with the drive shaft u-joints. The fact they don't have grease fittings, they seize up and cause vibration problems, also are "Staked In" at factory. The fact you can't find them is "BS" because they want you to buy the whole assembly.....about $540.00 last search i did. I removed the u-joints and took measurements. I'm posting my measurements of the u-joint and flanges. If anyone can find some info on this please let me know. I am still researching.