Originally Posted by WIbluebird
This makes sense, although on a dognose FE you'll be able to get away with a lot of weight over the rear axle because the engine and transmission are both at the very front of the bus. An empty FE will be very nose heavy.
I don't see there being any real difference in loading the rear of a RE or a FE (well, except that it'd be difficult to put much load in the back of an RE, unless you're building your bed frame out of concrete). I see it this way:
Dognose buses have their axle around 2/3 of the way back. This is so that the rear axle will carry the brunt of the weight. Even with the engine up front, this produces something like a weight distribution of 40% on the front axle and 60% of the weight on the rear axle (I'm just guessing on these number, btw. Maybe 33% and 66%?).
RE buses typically have their axles closer to evenly spaced from the front and back, but the engine is in the rear. They probably still have the same axle weight distribution as the FE, or at least fairly close.
If you put all the heavy stuff in the rear of an FE or a RE you will change that ratio, reducing the percentage of the weight on the front axle.
The ultimate place to put the heaviest items would be the place that retains the buses intended weight distribution. My guess is that just forward of the rear axle would be the best spot.
Regardless, it probably doesn't matter. The weight of the bus metal far outweighs what we'll be adding, unless you have a jacuzzi in the plans