CMP Ford F-AT Quad...help?

[David Herbert]

Dave,
The thing right in the middle of the above picture is almost universally called a "transfer box" in all wheel drive vehicles except in modern articulated loading shovels (and possibly some marine installations) where it is called a "drop box" as it's primary function is to lower the drive-line.
A transfer box can be bolted directly to the back of the gearbox / transmission as in jeeps etc, or be separate as in most trucks.

Also, to be pedantic the pulleys or sheaves are PART OF the fairlead assembly. The front fairlead has a pair of vertical rollers just behind the two horizontal rollers so that sideways loads can be taken. These are just visible in your post #16 middle photo. The use of pulleys at the rear is simply to allow for greater angles without damaging the rope by bending it too sharply.

Great work though, please keep posting.

David

[David Herbert]

I assume that Richard's photos show a winch equipped C60 which seems to have a bigger gap between the rear chassis cross member and the fairlead than a FAT. The top photo in Dave's post #16 shows the vertical legs of the heavy piece of plate that goes under the pulleys, bolted to the face of the rear chassis cross member. On the C60 the vertical legs are welded to the horizontal plate directly above the pulleys but also to something higher up - maybe another horizontal plate above the chassis rails ? There is then a gap of about 5" to the front of the rear cross member, leaving room for the brackets for the rollers to be extended upwards at about 45 degrees to reinforce the vertical plate.

David

[DaveW]

Thanks David for your input.
When I get to the front, I will look at the pulleys up there.

I am a Class A Auto Mechanic as well, but what I know as a "Transfer Case"
may be called something else (eg transfer box)in other countries, and on other types of vehicles, and from different eras.
Thats why I sometimes stumble with the actual names of things.

Here in North America, its generally referred to as a Transfer Case (on a 4x4 vehicle).

Funny thing...in Canada, a prop shaft is on an aircraft.
The tube connecting a transmission to an axle/diff is a driveshaft.

but once, when I was in England, helping my Dad fix his car, we went to buy parts for his driveshaft and they tried to sell us parts for the rear axle/diff.
We did not realize that terms were displaced, and we actually needed prop shaft parts!

...
anyway...
I have been referring to photos of three or four different types of frames/chassis
to get various angles.
And I am aware that cross members and other things are in different places along the frame.
I have a plan of the 4x4 Quad frame, so I am doing my best to keep things proportioned to that.

[Niels V]

a bit late reply but this might give you an ideal how the winch cable runs.
photo credit to Hermann Van Hove

[DaveW]

GREAT! thanks

[DaveW]

The current state of affairs...

[DaveW]

I need some more help!!

But first, the current state of affairs:




Okay...

Fuel Tanks....I assume the Quad Gun Tractor has two tanks, both the same.
Are they the same size as the larger, longer vehicles?

What are the rough dimensions of the tanks?
Mine are scale 10" x 10" by 31" long...which I think is too small.
I'm also not sure if they are close to square, or are they rectangular?
(wider than tall?)

And, what is the position of the filler neck.
I've got pics of Tanks with filler necks in different places...I don't know what tanks go with what vehicle.

Exhaust system...
my current plan is to create a y-pipe under the motor, connecting to the left side pipe.
Then straight back to a straight inline Silencer, with a 90 degree outlet pipe after that.
The Silencer appears to mount under the frame inside of the left fuel tank.
But I am unsure of where the exhaust outlet sits.

Can anyone answer any of this?
I appreciate it if you can.