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Old 03-18-2014, 10:33 PM   #11
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

Good to see the pics are working for you now.

Is the third axle a tag, or a drive? No drive shaft attached means tag, drive shaft means drive axle.

Nat
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Old 03-19-2014, 10:21 PM   #12
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

Like he said, if there's a drive shaft between the last two axles there's power
available for both. If that's the case it was common to have an inter-axle
differential with a lockup clutch arrangement and an air switch to lock
it up on the dash board. Show me a picture of the dash board area and I can
tell you for sure. The usual air-switch has some kind of warning label and
maybe mechanical inter-lock to stop unintentional activations. The inter-
axle lock-up should not be used above about 30 mph or run for very much
distance except on soft road surfaces or bad traction conditions. If it's left
locked up it will stress the inter-axle drive-shaft and cause excessive wear
to these components if run on normal pavement conditions. Crowns were
available in three axle 40ft bodies since at least 1954. They weren't exactly
rare but just an expensive option that wasn't bought all that often. Post the
VIN number (should be 37xxx or maybe 38xxx) and I'll see what I can find out
about it. Congrats and welcome to the madness.
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Old 03-19-2014, 11:42 PM   #13
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Year: 1973
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

Quote:
Originally Posted by Crown_Guy
Like he said, if there's a drive shaft between the last two axles there's power
available for both. If that's the case it was common to have an inter-axle
differential with a lockup clutch arrangement and an air switch to lock
it up on the dash board. Show me a picture of the dash board area and I can
tell you for sure. The usual air-switch has some kind of warning label and
maybe mechanical inter-lock to stop unintentional activations. The inter-
axle lock-up should not be used above about 30 mph or run for very much
distance except on soft road surfaces or bad traction conditions. If it's left
locked up it will stress the inter-axle drive-shaft and cause excessive wear
to these components if run on normal pavement conditions. Crowns were
available in three axle 40ft bodies since at least 1954. They weren't exactly
rare but just an expensive option that wasn't bought all that often. Post the
VIN number (should be 37xxx or maybe 38xxx) and I'll see what I can find out
about it. Congrats and welcome to the madness.
Here is the VIN : 37095 . Thanks for any info you find out!
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Old 03-20-2014, 12:02 AM   #14
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

Here are some more pix of the inside.
Attached Images
File Type: jpg image.jpg (41.9 KB, 568 views)
File Type: jpg image.jpg (34.9 KB, 567 views)
File Type: jpg image.jpg (27.4 KB, 567 views)
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Old 03-20-2014, 11:23 PM   #15
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

Quote:
Originally Posted by nat_ster
Good to see the pics are working for you now.

Is the third axle a tag, or a drive? No drive shaft attached means tag, drive shaft means drive axle.

Nat
I found out today that the third axle is a drive. What are the pro's and con's of that?
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Old 03-24-2014, 03:48 PM   #16
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

welcome, looks less like a VW bus in those pictures
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Old 03-27-2014, 12:29 AM   #17
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Chassis: Supercoach
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Re: The First Crown Coach Skoolie-bought from Grandpa Graf

I am in the process of converting a 1988 Crown. It is the extended 36 footer vs the standard 35 footer. I really wanted a 40 foot two axle Crown (they made them in the late 1980's until they went under). My wife, Donna, says that the two axle 40 footers do not drive like a "real" Crown. She is probably right. However, I really want that extra four feet. The things I could do in the interior with four more feet!!!! I have 40 foot envy with your new bus! The last Crown I ever drove while a school bus driver was a tandem 40" Crown. They are awesome to drive.

Welcome to the world of Crown madness. You will find that Crowns, IMHO, are the best vehicles for RV conversions. They were made like tanks and will last for decades.
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