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Stemco Hub Cap Window Kit

 

If you find that your hubs need oil, most likely you will need new seals which are on the inside part of the wheel hub. The repair kit contains a new seal and a ring upon which the seal seats. The seal is installed in the hub and rotates. The ring fits on the axle with a tight fit so that it does not rotate. Unless you know that it is there one would think the ring is part of the axle. A pry bar type of tool is used to remove the old ring and the new one can be installed by using a brass mallet and/or the old ring to gently drive it in place. Jerry Whiteaker 11/10/08

The drive axle is a different beast, only the front axle and tag axle will have these fill ports since in those areas all that is turning is the wheel. The drive axle will have a shaft that goes back to the differential. The axle, differential etc is filled with lubricant. So if you have a leak there, I believe you need to drain the differential, undo the hub bolts, replace the seals, refill the differential and that will not be measured in ounces of oil. When you pull off the rear top hat see if you can determine where the oil came from.

The hubs should use 85W gear oil, you can find it anywhere including Walmart. Just remove your front hub caps and tag axle top hats (pull off the decorative lug caps and the rest will come right off). Once done you will see a red cap, its a rubber plug and will pull right out. Add in the gear oil until you are at the full line and put the plug back in.Steve Cook 2003 U320 40'

Stemco 359-5995
Ryder W86 3595995
Navistar 286518C1
GMC/Volvo 2059246
Trailmobile 4131244
   
stemco_359-5995_hub_cap_window_kit

Stemco Hubcap Componant Parts

Bearing Oil Change interval - James Triana says to leave it alone unless it turns milky or is no longer transparent.

Inspect Steer Axle Hub Oil

 

© Barry Brideau 2003-2017