When you see rear differential fluid on your rear brakes & assembly.
That is your rear axle. It delivers the power to your tires.
If you have up and down movement with the rear axle at the bearing, chances are the axle is also worn.
New seals work best.
take the pin out of the rear diffrential and the axle should come out
It would be recommended to replace the rear axle bearings and axles when they are worn/bad. If the bearings and axles are okay, just replace the seals.
Those vans dont have rear seals, unless your refurring to the axle seals in the transmissions... those just pop out with alittle work and ascrew driver and the new one pops in with some help from a rubber mallet... they dont have rear seals, they got barings in the rear.
It is located on the rear axle. Remove the spare tire to see it easier.
You have to remove the brakes, rotors, wheel hubs, axle shafts, diff cover, and differential carrier, seals are on the inside of the axle tubes.
To change the rear axle fluid you can remove the rear cover from the axle and drain it that way. If you don't want to remove the rear cover you can use a pump and a hose to drain it through the fill hole.
It should be mounted to the frame over the drivers side rear axle.