Up next is the Bumper Bag. This has the front bumper and the nerf wing in it.

These are pretty straight forward to mount up.

Nerf Wing.

Well, it’s starting to look like a car..

Ok.. now back to that rear axle. I got ahold of some diff lube finally and was able to continue that portion of the build.

All the parts out of the bag.

Here are the diff balls and bearings. I like having a magnetic mat when working with these. They don’t roll away so easy.

This gets built like a standard 1/10 pan car axle.

First we lightly lube the diff balls and insert them into the spur gear.

We then take the carbon axle and install one of the diff rings.

Slide the spur gear over that. Bearing too!

Then insert the bearings into the diff hub and slip the other diff ring onto that.

Carefully slide that assembly onto the axle while ensuring the diff ring does not move out of it’s keyed notch.

Next insert another bearing and then diff spacer. The lip on the diff spacer should face the bearing when installed.

When assembled it should look like this.

Now we insert the conical spring washer. The cone should face away from the gear and the flat part should rest against the diff spacer shown above.

Next we install the diff nut and tighten it so that the assembly stays together. Adjustment will be done later.

Now that the diff is built, let’s install the axle.

First we have to pick the slugs that go in the pod. These adjust the ride height of the axle, and which ones you use will depend on your tire diameter. With 2.12 tires, I opted to start with the 1.75 slug size with bearing hole facing up. Insert the slugs, and then the bearings as shown.

Now slide the axle through.

PRW gives you this big spacer for easy width placement of the left hand hub. Insert it over the axle with the small side towards the bearing.

Now we install the left hand hub and tighten it where there is minimal back and forth shucking of the axle.

Rear axle is now installed.

Looking more like a car…