Never seen anyone take pics of process so I will since I finally decided to replace them, after years of neglecting the leaky pig.
Kind of a PITA, but there are worse jobs on a FSJ.
Different ways to do this, I believe this to be easier than crawling around on you back under a FSJ.
BE SAFE YOU WILL BE REMOVING THE SHIFT SHAFT, apply the parking brake, and chock the wheels!
In case you accidentally bump it out of gear.
Remove the passenger seat, and roll/fold the carpet out of your way.
Then you'll need to remove the access cover, and you have room to work from above!
You will likely see a nasty buildup around the seal(s) like this.
You'll need to clean this all up, use whatever you prefer. I like purple power and brake clean. You want it pretty much spotless, so nuke it and let it sit for a while.
While it is soaking you can remove the throttle and shifter shaft levers. Just loosen the pinch bolts and spread them a little, they pull right off. Set them off to the the side.
Then you'll be left with this...
Time for more cleaning!
Cleaned up and ready for the not so fun part.
You'll want to remove the rear tranny line for more room to work, and push it off to the side gently.
Get a little awl and dig in and pry the seal out, it WILL fight you a lot.
They make a tool for this, but I don't have one. It screws into the seal, probably like $15 @ NAPA?
Seal removed...they don't want to come out, and need to do a little more cleaning.
Be sure to clean the shaft w/ some fine sandpaper, or steel wool.
Needs to be clean or it might leak again.
New seal installed. just tap it in w/ a long socket.
Now remove the e-clip, and washer for the throttle shaft. Have a magnet standing by to catch them. You don't want to lose this little guy!
And remove the washer
Use a little screwdriver, or awl to pull out the little rubber seal.
Clean the bore & shaft w/ fine sandpaper or steel wool. Blow out the crud w/ brake clean or compressed air.
It's normal for the shaft to seem loose.
Pull up on the shaft and push the new little seal back in w/ your fingers.
Be sure to pay attention to which way it came out/goes back in.
Once you get it pushed in, reinstall the washer, pull up on the shaft and slide the e-clip back on. USE THE MAGNET again, you do NOT want to lose that e-clip.
Done with seals, now put everything else back together.
Hopefully your transmission will no longer leak from here?
Might also be a good time to take a look @ the reverse/neutral safety switch? They can leak too.