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Old 10-08-2019, 10:17 PM   #1
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Default Rear Differential Access on Chevy Based Roadtrek

I thought I'd do a little maintenance on my 2004 Chevy-based Roadtrek 190P. I had in mind to replace the fluid in the rear differential. But when I looked under the van I saw that the generator was very close to the differential - maybe too close. Does anyone know if one needs to remove the generator to gain access to the differential?
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Old 10-08-2019, 10:36 PM   #2
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Originally Posted by ManWonder View Post
I thought I'd do a little maintenance on my 2004 Chevy-based Roadtrek 190P. I had in mind to replace the fluid in the rear differential. But when I looked under the van I saw that the generator was very close to the differential - maybe too close. Does anyone know if one needs to remove the generator to gain access to the differential?

I am assuming you have the non towing package rear axle? Might be similar for the larger towing pkg axle, but even tighter.


There is no drain the housing so you either have to remove the cover or suck the oil out with a suction gun. Both are messy and tough with genny right there, but doable. If the fill plug has never been out, in may be very, very, stuck and hard to get out, even to the point of needing to get the cover off to put heat on it. Refill needs to be done with suction gun or pump. Anyway you look at it, it is an ugly job.
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Old 10-14-2019, 10:59 PM   #3
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There are 4 nuts to remove in order to drag the generator back out of the way.



Checking the fluid level when you are done is the hardest part.

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Old 10-15-2019, 12:52 AM   #4
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thanks for all the helpful info especially on the genny removal which in my case would likely mean i would not put it back in
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