- Joined
- Jul 6, 2015
- Messages
- 4,421
- Reaction score
- 263
- Location
- Iowa
- My Car
- 1973 Mustang Grande 351C 2v
Ok. So this has been going on for a while now. Front right wheel bearing was shot. Replaces both sides. Worked great for a while (about 150 miles) Started to get some noise/vibration in front. Pulled the wheels to check bearings again. Left was perfect just as set. Right was loose. Castle nut and cotter pin still in place. Thought maybe it didn’t get fully seated when installed so went through the process again. Worked great for a while again then same thing. Pulled wheel and castle nut and cotter pin still in place. Removed them and tightened down the main nut per the shop manual again. Reinstalled castle nut and another new cotter pin. Again worked great then started in again. Repeat the above. Now is doing it again. Am I missing something. Why does this one bearing keep getting loose to the point I can tighten it a good 3/4 turn after every 100 or so miles. Any help appreciated. New bearing were properly greased with red high temp wheel bearing grease using the tool you press down on to grease the bearings.