The chassis on the CC-02 has been revised big time – it now features a true c-channel design. About 80% of it’s length is molded in plastic with separate metal ‘extensions’ at both ends (each about 2 1/2″ long). These provide rigid end points to the chassis, however I think these are Tamiya’s ingenious way of making the chassis longer down the road. Simply make longer metal pieces and wah-lah … a longer chassis.
![](http://static.competitionx.com/uploads/2010/07/section-nav-arrow1.gif)
The servo can be mounted one of two ways; with the output shaft facing down or towards the front of the car. I opted for down but, at this time, can’t give you a explanation if one way is better than the other.
The shock towers are marked with an A and B and are directional – pay close attention when mounting them.
Step 4 has you assembling and ‘pasting’ the plastic locknut holder to the frame rail – this is never going to stay. Put this assembly aside; we’ll be installing it in Step 21.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p1.jpg)
Attach the battery tray to the lower chassis deck.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p2.jpg)
Attach the servo mount to the lower chassis deck.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p3.jpg)
Assemble the battery holddown strap. It was much easier if you install the mount screw first (to hold the strap in place), then the 3x18mm screw.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p4.jpg)
Assemble a pair of 3mm locknut holders. Again, the manual states to ‘paste’ them in place with some grease. Ya, no. Set them aside for a later step.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p5.jpg)
The chassis has pockets all down the sides – both sides. These pockets will be holding the 3mm nuts. Add a dab of grease to each pocket, then press a nut in.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p6.jpg)
Up front – more grease, more nuts.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p7.jpg)
Add two 3mm nuts to the front of the frame rails as well. These are a press fit and won’t need any grease to keep them in place.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p8.jpg)
Now attach both frame rails to the chassis. Pay attention to the screws here.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p10.jpg)
Grab the servo mount and install two 3mm nuts into the cavities as shown. A dab of grease will help keep them in place.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p11.jpg)
Attach the front shock towers. Note that they are directional (see the A and B printed on them).
There are two servo mounting options; I’ll be building the CC-02 with the servo output shaft facing down.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p12.jpg)
Build two more 3mm nut holders.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p9.jpg)
A closer look at the four aluminum frame rail extensions. All four are the same, so no need to worry about placement.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p13.jpg)
Attach a pair of aluminum frame rails to the servo mount. Front clip is done.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p14.jpg)
Moving to the rear. Slide a pair of 3mm nuts into the rear cross brace (grease is suggested here).
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p15.jpg)
Attach the towers to the brace. Again, they are directional and marked with an A and B.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p16.jpg)
Build four 3mm nut holders.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p17.jpg)
Attach the final two aluminum frame rails to the tower assembly. You’ll only be using two of the 3mm nut holders from Step 16 here.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p19.jpg)
Now, slide the other two 3mm nut holders into place as shown. A light dab of grease will help keep them in place.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p18.jpg)
Slide the rear frame rail clip onto the rear of the chassis and secure with the screws.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p20.jpg)
Slide the front frame rail clip onto the front of the chassis and secure with the screws.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p21.jpg)
Here is where we can slip the 3mm nut holders from Step 4 into the pocket and secure with the 3x12mm screws. Trust me, this is WAY easier than trying to manage the earlier parts of the build with these ‘pasted’ in place.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p22.jpg)
Wiggle the transmission into the belly of the chassis. It’s a process, for sure, but not all that difficult.
![Tamiya CC-02 Trail Truck Build – Part 2 – Chassis | CompetitionX](http://static.competitionx.com/uploads/2019/10/tamiya-cc-02-chassis-build-p23.jpg)
Secure the transmission with the four screws (two 12mm, two 25mm). This is a shot from under the chassis to see where the screws go (note the color difference – 12mm screws are light, 25mm screws are dark).
Chassis together, transmission installed. Quite a few screws and nuts in this assembly, but your CC-02 is starting to look pretty good.
Set your chassis assembly aside and let’s get to Part 3 – the Driveshafts.
Tamiya CC-02 Trail Truck Build – Opening Page
Tamiya CC-02 Trail Truck Build – Part 1 – Transmission
Tamiya CC-02 Trail Truck Build – Part 2 – Chassis
Tamiya CC-02 Trail Truck Build – Part 3 – Driveshafts
Tamiya CC-02 Trail Truck Build – Part 4 – Front Axle
Tamiya CC-02 Trail Truck Build – Part 5 – Rear Axle
Tamiya CC-02 Trail Truck Build – Part 6 – Shocks
Tamiya CC-02 Trail Truck Build – Part 7 – Electronics
Tamiya CC-02 Trail Truck Build – Part 8 – Final Steps