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|Rear engine buses being towed||Mike||9-1-02|
|Hello I am wondering something. I am buying a rear mounted engined bus that has a Detroit something or another. I noticed that it had to be towed due to electrical problems. inside the bus lays this splined spindle that was taken out of the right rear wheel. Is that a certain way for the wheels not to turn the tranny? I am hoping that the rear end isn't shot. I had a pickup truck with a bad wheel bearing and it broke, the wheel and axle came out of the rear end but can buses still roll without that axle or spline? Mike|
|Re: Rear engine buses being towed||Mark O.||9-21-02|
|Every large bus or truck has what is known as full floating rear axles. When you pull the axle shafts out the rear end will not be turning. |
You have to pull both axles out or drop the drive shaft if you tow a bus or truck. If the tow goes more than just a few miles at more than slow speeds the turning drive shaft will burn up the transmission.
With full floating axles, if an axle breaks the wheel will not come off. You also have an inside and an outside wheel bearing so the odds of both failing and causing the wheel to come off is pretty slim. If a rear wheel bearing is starting to fail you should notice raised temps on the rear hubs when you do your post-trip inspection.
Most times, the wheel seal will fail before the bearing. If you see grease leaking out of the bottom of your brake drums you know you have a problem.
Good luck and happy trails.