Unimog

[ProjectTwin]

This thing has been passed around the forums a time or ten and it has finally come to rest at my place. I picked it up from TattooKenny

When Kenny got it the chassis was cut to hell, it had one Bruiser shock on it, and an Axial tranny was included. Kenny wanted one of my rigs so we worked a deal and the 'mog came home.

I tossed the old, butchered Hi-Lift chassis and axles aside and grabbed the chassis that was under the F350 Hi-Lift and gutted the transmission and cross-braces from the thing and started sizing up how I wanted to build the 'mog.

I grabbed the Axial tranny and GD-600 that came with the thing and started sorting out how I wanted to set up the drive system. I wanted to keep as much clearance under the chassis as I could.

Here's what I ended up doing.

The motor and GD-600 will be used as the transmission and was placed between the frame rails above the rear axle. I still need to make mounting plates to bolt the GD-600 in place but for now I just ran a zip-tie around the motor to get a feel for how it'll all go together.

Top view of tranny.


Rear view.


The Axial transmission was stripped down and had one screw boss removed. After a few minutes with a nylon belt on the belt sander the sharp edges of the tranny were removed. Still need to cut down the input shaft on the tranny so I can install a yoke.






It just wouldn't be a 'mog without some portals, now would it? Front axle has a BTA steering setup.



Chassis clearance is 4.3 inches, there's right at 4 inches under the Axial transfer case.




Track width is 9 3/4", wheelbase is 10 7/8"

A few notes as I go along...
GD-600 transmission ratio: 2.5: - 3.8:1 (compare that to the 6.2:1 of the standard Axial pinion/spur)
Axial tranny (transfer case) internal ratio: 2.6:1
Hi-Lift axle internal ratio: 2.66:1
RC4WD portals: 1.5:1

With a completely stock Axial tranny connected to the axles without portals I'd be at basically 42:1 for an overall ratio.

With everything that's installed now I'm at 38.5:1

Top view:


Side view:


Just need to make a mounting plate for the Axial transmission/transfer case now.

[ProjectTwin]

Dropped the body on for a few pictures. It's not mounted, just sitting that's why it's sagging in the middle.

[smewhtguy]

Thats nice but why is the motor in back? Could you not get it to fit upfront with the servo?

[fastg60]

those pics are awesome, really could imagine that's a fullsize!

wheelin vids when you get a chance!!!

[ProjectTwin]

Originally Posted by smewhtguy

Thats nice but why is the motor in back? Could you not get it to fit upfront with the servo?

Just to be different and to allow room for a winch servo (which will drop next to the steering servo) and some other items to be installed up front.

Originally Posted by fastg60

those pics are awesome, really could imagine that's a fullsize!

wheelin vids when you get a chance!!!

Must be that scale grass I've got.

Wheeling vids for sure.

[PAToyota]

Sweet! Scale grass is right!

[SKOP]

cool mog build up