Steve,
I don't know about a '40 but most AD 1-1/2 ton and up trucks I've seen
have a 10 lug wheel. Chevy still uses this bolt pattern on their 3500HD
trucks. They are classed as a 1 ton but they have a straight axle front
end. I have seen these chassis under modern mini school busses you may
be able to swap out the axle or whole chassis.
I don't know about changing the original axle over to discs.
Theoretically it is possible, but it would take a lot of work. I changed
my 1 ton over, but I had the bearing specs to make adaptors from, I
can't find any bearing specs on the heavier trucks.
I don't suppose you live in Florida? I would be happy to help as much as
I can with knowledge and info otherwise.
Any large truck shop should be able to tell you where to have your
springs done. Before you put any money into what your old axle check
your king pins, sometimes the axle hole can be worn too far oversize to
be fixed economically.
John
"49-50-54-57-79-95" Chevy 3800 Panel
'52 GMC 640 FMC Firetruck
Steve Bobst wrote:
>
> Hey gang,
> I could use some input on suspension mods for my old bus. I know it is a
> little old for the list, but I am sure some of you will be willing to add
> your 2 cents worth.
>
> Subject: 1940 Chev 1-1/2 ton 16 passenger school bus with 133" wheelbase.
>
> It currently has the original drive train. I am looking to do some serious
> traveling with this thing and am looking for a smooth and dependable ride.
>
> Option 1: Subframe or switch frames with a one ton step van. This would
> give me the modern ride, but I am concerned with the width of the front
> suspension. I could widen the fenders to make a better fit.
>
> Option 2: Retain the original drop axle. Change the springs. Convert the
> stock hubs to 1 ton disc setup. Narrow a 1 ton rear end and use a 4 link
> with airbags.
>
> Option 3: ???
>
> I personally like option two, but have no idea if it is even possible.
> Where would I begin to look for a way to convert the front hubs over to the
> 1 ton disc? Is this something that could be fabricated at a reasonable
> cost? I know kits are availible for the half ton trucks so I would assume
> technologically it is possible. Also, where would I go to have springs
> built?
>
> OK, lets see what you guys can come up with!
>
> Thanks in advance,
> Steve
>
> Misc. task force
> 1940 Bus project
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
--
John
"49-50-54-57-79-95" Chevy 3800 Panel
'52 GMC 640 FMC Firetruck
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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