I know this has been gone over plenty of times, and I did a search and found nothing pertaining to the only question I have. On RockAuto's online catalog, there is only two Moog options on lower ball joints - one just says lower ball joint, the other says "oversized ball joint - lower - fits I.D. 1.749" to 1.753". So before I check out, I just wanted to check on here to make sure I end up with the right parts. Seems like a pretty fair price for Moog. Here's a quick pic of my cart:



And the ball joint options:



Thanks in advance!

 

Is one just heavier duty I am wondering???

 

Yeah I was wondering if maybe that applied to the 7700?

 

Over sized are for trucks that have had normal ball joints replaced multiple times and the hole they go into causes the normal ones to slip and not get a tight fit. At least that is what I assume.

 

tackle is correct. When you remove the lower ball joint you will see there are splines built into the lower ball joint. What happens is if you have replaced the lower ball joints a few times is that the splines get wore out by corrosion and repeatedly pressing the ball joints in and out. So Moog makes ball joints that are very slightly oversized and you lock tight them into the lower control arm. Your only other option other than the over sized ball joint at that point is replacing the lower control arm.

 

Good info to know, thanks fellas! Parts are on their way already! I noticed on my cart that I had the raybestos control arms instead of the Moog like I wanted, so the price was a little more than seen here after I swapped. But I also found an online code that have me 5% off, so it wasn't much more. Much cheaper than oreilly.