1994 toyota 4runner front diff.seal replacement on passenger side

This is not easy....You will need air tools ,spray penetrate,seal remover,hammer,and Jack stands..Seal installation tool,.All proper tools..safety glasses.correct seal replacement.,new lock nut...Set park brake,block rear wheels,raise vehicle front and safely place jack stands under each side of lower control arms..Spray lube front drive shaft mounting hardware and lock nut that holds Yoke on front diff..Let it set to penetrate..put vehicle in neutral..Mark shaft to yoke location and direction perfectly because it has to be installed in perfect timing exactly how it was removed..,Remove drive shaft..Remove lock nut and yoke from front diff...You will have to hold yoke while removing lock nut because it will spin..PROTECT HANDS..( These can be VERY DIFFICULT to remove..Sometimes they have to be heated..You will need a yoke removal tool if it doesn't tap off with hammer...Mark exactly the yoke to spline location before removal..You can take close up photos however Mark it also to be sure...If you re-install it wrong it will vibrate terribly..Once yoke is removed You can remove seal.Make sure the new seal is correct...CAREFULLY..DO NOT DAMAGE SPLINES WHILE REMOVING..Sometimes even the perfect seal remover will damage splines..So cover it to protect spline threads..Clean all areas once seal is removed..Make sure nothing is pitted or damaged...Install new seal with installation tool..Lightly,perfectly tap it flush with diff..You can use old seal to install new seal if you don't have installation tool But only a pro should do that...Once in place Line drive shaft yoke with your marks and tap it on ..Use NEW LOCKNUT AND TORQUE IT TO SPEC..Install drive shaft as marked..torque to spec..Lower truck and check fluid..Complete..

Here's a link to your front suspension,you will need to join their site to see,it's free. Repair Guides 4wd Front Suspension 4wd Front Suspension AutoZone com

you should only change any diff when damaged or if a different ratio is required and being a 4wd both diffs would need replacing with change of ratio, oil in the diffs should be checked regularly and oil changed every 20,000kms sooner if used in harsh condition

fix same problem myself...these's' only 1 inner seal (differential output seal only-about 10$ each) that needs to be replace and new brake shoes (20$ part)..assumed u have rear drums and it leaked diff fluid on the brake shoes..but, i also replaced the brake cylinder (15$ part)-u have to disconnect brake cylinder to remove axle..look on internet for procedures..http://www.yotatech.com/f128/replacing-rear-axle-seals-3rd-gen-4runner-76339/..hope this helps..all dealers are ripoffs-worked at toyota for a year

remove the front driveshaft, remove nut on yoke, remove yoke, remove seal, put together in reverse order, add oil till full

That will be a Huge job. The whole front diff must come out of the car and the case will need to be taken apart to even gain acess to the carrier side bearings.
The hub bearing is where the wheel bolts up is that maybe what you are talking about?
Also the axle seal isn't that bad to do you need to remove the cv shaft then it's just a simple remove the seal and install the new one.
But all of these jobs will be big ones.

I cannot see it, but I am guessing that you need to replace your axle seal. To do this,you have to pull your CV shaft out. Remove the tire, remove the caliper from the top of the rotor. Using a hammer on the back, remove the rotor. Take off the spindle (axle) nut, separate the axle (CV shaft) from the hub. Replace seal. It should pop right out. Good luck!

In order to replace the seals, remove the front diff assembly. To remove the passenger side seal, I would suggest removing the tube assembly (5 bolts). This is due to a steel washer that goes on the end of the axle. If you just pop the axle out, it is tough to get the washer aligned and back on the shaft. Use anerobic sealer to seal the housing to the diff case. The drivers side you can pop out with a hammer.

It is fairly easy to do. remove rear wheels and brake drums, remove the differential cover, rotate the diff to access the diff pin bolt and remove, remove pin, push axles inward and remove c clips, slide out axles and replace seals. reverse procedure