A friend of mine said his TJ had a clunk. I shook one drive shaft and told him to go get 5 u-joints. The rears still had the original Spicers which were still semi-ok. The fronts had been changed sometime in the past and the turkey who did the work never installed the grease fittings. They were trashed. Installed the five and no clunk. Sadly, no Spicers were to be had, installed some Made in Japan brand. We shall see how long they last. Fit and finish were good.