| Why do we still measure ride height to the frame slots? [message #359172] |
Sun, 04 October 2020 06:51  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma:
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Senior Member |
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So, my thinking is the slots were used in production, but are not the greatest idea in the real world now.
The rear slots are several feet behind the bogie, which is the suspension point of the rear wheels. Unless you are checking the ride height on a perfectly flat level piece of concrete, you could have severe errors in your measurement. Not to mention you can't access the slot under the generator anyway.
I measure from the ground to the bogie Zerks. This is the pivot point for the rear suspension and mid-way between the two rear wheels. At this point the rear measurement is not affected by the front height or need to be level surface front to back. Also the area between the two wheels is most likely to be reasonably flat if not on a concrete surface.
I believe the measurement is 13.25" on my coach to the Zerks.
I know some measure to the top of the rear wheel-wells. I believe this measurement can introduce some errors and uncertanties as well. That measurement is on the body, not to the frame. The body is sitting on rubber pads and the weights and distributions can change significantly with fresh and black water quantities and also propane load introducing some amounts of errors.
What say yeh?
Just my farm-boy mechanic way of seeing things.
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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