Axial EXO Terra Build – Part 4 – Center Differential

The Build – Part 4
In part 4, we assemble the center differential. Depending on the power you plan and running through your EXO, you can change this oil to help balance the front/rear drive ratio.

Build Notes:
The center differential build is much the same as the front and rear diffs. Having some clean towels handy will help with clean up.

Slide the red o-rings over the outdrives. A dab of diff fluid will help keep them lubed.

Press the bearing onto the differential housing. It should be a snug fit and should sit flush as shown.

Insert an outdrive through the housing and slide another red o-ring over outdrive.

Align the flat spots on the outdrive and spider gear and slide the gear into place.

Snap the e-clip into place. As we did with the front and rear diffs, a dab of diff fluid will help keep the e-clip in place while you lock it to the outdrive.

Slide the small spider gears over the input shaft as shown…

…and drop it into place within the diff housing. Rotate the outdrive to seat the gears if they don’t push all the way into place.

Press the bearing onto the diff gear as shown.

Flip the diff gear over, insert the other outdrive and slide the red o-ring into place.

Align the flat spots on the outdrive and spider gear and slide the gear into place.

Snap the e-clip into place. This side is much easier to work with so you probably won’t need the diff oil to hold the e-clip in place.

Press the diff gasket into place as shown. If it slides off, a dab of diff fluid on it should help keep it in place.

Fill you differential to about 85% with the provided fluid. Rotate the outdrive a couple turns to help circulate the diff fluid thoughout the housing. Let it stand for a minute or so and then refill to about 90% with the fluid.

Attach the diff gear to the housing by aligning the pegs in the gear to the slots in the housing. Secure with the four screws.

Part 5 – Assembling the chassis.
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