# Step 5-9

{% hint style="success" %}
Vibra-TITE VC-3 Threadmate ([Vibra-TITE](https://wcproducts.com/products/threadlocker)) is recommended on all bolts that thread into a tapped hole.
{% endhint %}

## Step 5

<figure><img src="/files/6QHwaPmCYCcSPloZ4QNn" alt="" width="563"><figcaption></figcaption></figure>

## Step 6

Bolt the two halves of the gearbox together using the upper two #10-32 x 3" L Bolts and 3/8" OD x 2" L Spacers as shown in the image below.

{% hint style="info" %}
The lower two #10-32 x 3" L Bolts and 1/2" OD x 2" L Spacers will be installed when the gearbox is mounted.
{% endhint %}

<div><figure><img src="/files/HVO6984knJ4RIkPvtuHV" alt=""><figcaption></figcaption></figure> <figure><img src="/files/KI19KY3W7KaEOTVRwilC" alt=""><figcaption></figcaption></figure></div>

## Step 7

Install the motors with #10-32 x 1/2" L Bolts.

{% hint style="info" %}
Only four bolts are required, but more may be added for extra security.
{% endhint %}

<figure><img src="/files/wgidlQqm0y9WHcjYrqsb" alt="" width="563"><figcaption></figcaption></figure>

## Step 8

The pinions must be spaced out from the motor nub with at least one 1/16" Spacer. The Pinions are retained using #10-32 x 1/2" L Bolts.

<figure><img src="/files/Lxk2DxaPca5Ong7zHU7L" alt="" width="563"><figcaption></figcaption></figure>

## Step 9

Apply [Lucas Red "N" Tacky](https://www.lucasoil.com/product/red-n-tacky-grease/) grease to all gears after final assembly to ensure smooth operation and reduce wear during use. Once greased, spin the Output Shaft to distribute the grease evenly before powering up.

After running gearbox for 15-30 minutes, reapply a light amount of grease. Reapply as needed.


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