HOW DO I REMOVE THE LOWER BALLJOINT

If it is the lower ball joint it presses out the bottom. rent a ball joint press from local parts store (refundable when tool is returned) and it is simple if you have an impact or electric impact ($75). put the press stud on the ball joint stud and ring underneath. If you never have used one, they will explain how while you are there.

The bottom one presses out the bottom of the spindle and the top one has a clip on the bottom remove it and the ball joint presses out the bottom be carefull not to bend the spinale

You need to rent a balljoint removal tool at autozone or some auto parts store.there should be instuctions in the box.

I’m happy to help further over the phone at https://www.6ya.com/expert/kenneth_3efc1f8510674f04

Out the bottom

All ball joints press on the threaded end to remove them, the thread goes through the hole where the tapered bit fits. With all of these methods loosen the nut to the end of the threads so you don't have bits flying everywhere.
There are a few ways to remove them.
1) Try loosening the nut (still on the thread ) then hitting it with a hammer sideways in and out then on top of the nut. Sometimes works usually doesn't
2) Use a ball joint splitter. Hard to describe, but it is a similar to a pair of pliers with a large bolt at one end. You slide (or tap) it in place and wind the bolt down. Another type of ball joint splitter is simply a tapered fork that you
3) Get two hammers and smack either side of the tapered hole together as hard as you can. This slightly ovals the tapered section momentarily and the joint pops apart. Didn't happen 1st time? Bet it will the 3rd or 4th time as you get your timing right and are swinging the hammer a bit harder!
4) Don't particularly like this one as I think it puts too much of a sudden shock on other parts not designed to take them but, it works, I've seen it used by many trained mechanics and that is what matters. Use a hammer and strike very smartly on the end of the suspension arm so you are sending the force along the arm. Basically you are hitting into the motor. Works the same as above but you are not tapping, you are really smacking it.

You see, it all depends what you have to hand. Whilst I have a couple of ball joint splitters, it is in its place in the tool box and if I've a couple of hammers to hand (number 3) I'll use that way for speed and to save me walking across the shop. Best of luck.

Think they have a snap ring on the top that holds it in place it would come out thru the bottom, sand paper out the hole it came from put you ball joints in the freezer the nite before and lube the hole good with grease before installing the grease fitting use a block of wood and bottle jack under the new ball joint using the block of wood center it and jack up the a frame and with a hammer tap on the a frame it should slide right in without removing the lower control arm