Over the last few years UKMonsters has gained a reputation for producing very high quality chassis and upgrade parts for the Tamiya Clodbuster, we are now looking at the Tamiya Lunchbox and will be continuing this trend.
Due to the cheaper cost of the Lunchbox most of the upgrade parts available seem to reflect this lower quality (3d printed parts etc).
UKMonsters will only be producing our CNC'd carbon and machined aluminium upgrades to our usual very high standards. |
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Lunchbox - Pro Carbon Chassis Kit |
What is it? |
Q&A |
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This is a chassis kit to replace the stock plastic tub chassis of your lunchbox.
Features:
3mm Carbon construction with CNC alloy bulkheads and front suspension mounts
Large low mounted radio/esc tray above the battery
Adjustable height body mounts, highest position is the stock body height. Lowest is 24mm below.
The included Delrin body mounts have the standard size 4mm pin and are very strong. These can be replaced with optional 6mm versions if required.
Adjustable shock mounting positions, Oil shocks must be used. Hardware and spacers are included to fit your 80mm shocks.
Servo is mounted lower and flatter, and can be fitted in the traditional location or centralised to use equal length steering rods (included)
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Do I need oil shocks? |
Yes, the original lunchbox suspension springs wont fit. |
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What length shocks do I need? |
80mm will work best (75-85mm is ok) this will retain the original ride height. |
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Will the stock body fit? |
Yes the body posts are in the original place. |
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Can I mount the servo in the middle? |
Yes, you can mount it traditional, or central using the equal length steering rods included in the kit. |
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I already have the pro front suspension, will it fit? |
Yes, this is recommended. |
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I already have a rear gearbox support, will that fit? |
Yes. |
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Will the Midnight Pumpkin body fit? |
I have a limited number of kits that include the pumpkin body mounts, let me know when ordering. |
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What upgrades dont fit? |
The only parts that do not fit are the servo mount brace and body mounts with carbon braces. |
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What if my body has larger 6mm holes? |
We have 6mm body posts as an upgrade option. |
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If I break or damage a part of the chassis, can I get spares? |
Yes, every part of the chassis is avalable to buy separately. |
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Why is it so expensive? |
There is already a cheaper chassis avalable for the lunchbox. Our chassis is constructed of the finest materials and made with CNC machined parts. It is a thing of beauty whilst also being functional and offering a large amount of adjustability. This kit is not for everyone, its for those of you that want to build a kit with all the options included. Most RC kits have carbon and machined alloy parts as options, our kit comes with these parts included. |
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You will need an original Lunchbox kit as a donor.
You will need oil shocks that are 80mm in length eye to eye (75-85mm will work).
The chassis comes in kit form with instructions and requires assemble.
Battery tray can fit a hard case 2s lipo upto a maximum of: |
47mm Wide |
25mm High |
136mm Long (can be extended)
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Instructions Download
How much and where to buy
UK: £125 + £5 post
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USA/world: $165 + shipping
$35 UPS or $21 airmail
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email to buy.
or buy on ebay
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Pro Carbon chassis option - 6mm body posts |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is a set of 4x 6mm body posts to fit the UKM Pro carbon chassis.
The Chassis kit comes with standard 4mm body posts like the original kit. If your body shell is already drilled for 6mm holes these thicker posts are less likely to break at the pin hole.
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UK: £8 + £2 post
USA: $11 + $8 shipping
email to buy.
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Fit in place of the posts on your Pro carbon chassis. 4mm versions shown below.
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Pro Carbon chassis option - Pumpkin body mounts |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is a set of body mounts to fit the UKM Pro carbon chassis and fit the Midnight Pumpkin Body shell.
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Front and rear complete mounts including all mounting hardware.
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UK: £10 + £2 post
USA: $13 + $8 shipping
email to buy.
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Installs in place of the Lunchbox body mounts.
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Pro Carbon chassis option - Pumpkin body mounts |
What is it? |
Whats included? |
How much and where to buy |
Installation |
Replacement carbon battery strap.
The hole in the middle allows for liposwith the wires exiting from the side of the pack.
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The carbon plate only
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UK: £6 + £2 post
USA: $9 + $8 shipping
email to buy.
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Installs in place of the original plate on the Pro carbon chassis.
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Below parts fit the standard Lunchbox:
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Lunchbox - Alloy servo mount brace |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is a servo mount/brace machined from solid 6061 aluminium. The stock fixing position for the servo is very weak, the servo can flex and in a big crash the mounting points on the chassis can easily break.
This brace fixes to the chassis in 4 places and significantly strengthens the front end and servo mounting points.
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The alloy servo mount, hardware and instructions.
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UK: £20.50 + £2 post
USA: $26 + $8 shipping
email to buy.
or
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The servo needs to be fitted to the mount then attached to the chassis. The extra fixing points need two 3mm holes drilling in the chassis. The mount can then be fixed to the chassis with the included hardware.
Instructions Download
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Lunchbox - Pro Independent front suspension kit (with V2 HD arms) |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This converts the front suspension to a double wishbone setup.
The kit consists of new Version 2 HD CNC machined lower arms made from solid Acetal/Delrin. Unlike 3D printing and even ABS plastic molding Delrin is very strong, resists wear and due to the design has some flex to absorb impacts.
The hub carriers are under stress from suspension and hub mounting points, so these are machined from solid 6061 aluminium for maximum strength to resist the loads and impacts of off road driving.
Upper links are made using SSD rod ends and stainless M4 threaded bar for adjustable length. These are attached to the chassis using a carbon 3mm plate.
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Everything required to convert the front suspension to double wishbones.
Pair of new V2 HD Delrin wishbones and alloy hubs.
Upper links with rod ends.
Carbon mounting plate.
All fasteners and fixings needed are included and made from high quality stainless steel.
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UK: £52 + £3 post
USA: $64 + $8 shipping
email to buy
or
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No modification is required to your chassis, some parts are reused, like the Tamiya U bracket, which allows the same arms design for left and right.
Full instructions and all hardware is included.
Instructions download
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Lunchbox - Front suspension spare wishbones |
What is it? |
Whats included? |
How much and where to buy |
Installation |
Spare wishbone for the above independent suspension kit.
These are the new V2 HD wishbones with thicker arms and twin 3mm steel pins.
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A single V2 arm.
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UK: £8.50 + £2 post
USA: $12 + $8 shipping
email to buy
or
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These are 100% compatible with the V1 UKM suspension kit.
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Lunchbox - Adjustable carbon wheelie bar |
What is it? |
Whats included? |
How much and where to buy |
Installation |
A carbon replacement for the stock wheelie bar, this fits around the gearbox much tighter than the original and has a wider delrin wheel that runs on dual ball bearings.
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The complete wheelie bar with all fixings required.
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UK: £17.00 + £2 post
USA: $22 + $8 shipping
email to buy
or
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The carbon plates fit very tight against the gearbox case. You use the existing screws or if they are loose use the included socket head screws. The highest position is the same as the stock wheelie bar.
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Lunchbox - Alloy rear hubs |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This replaces the stock plastic rear hubs, these machined from solid 6061 aluminium and dont wear or break like the stock items. Over time the metal drive pins can press into the plastic hubs, these can then rub on the gearcase. The alloy hubs prevent this.
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A pair of alloy rear hubs.
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UK: £10.50 + £2 post
USA: $15 + $8 shipping
email to buy
or
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Replaces the stock rear hubs.
No modifications required.
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Lunchbox - Alloy motor cover (fits grasshopper, hornet, etc) |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This replaces the stock plastic motor cover, its machined from solid 6061 aluminium.
This will work as a heatsink on the Hornet/grasshopper etc where it attaches diretly to the motor. Also on the lunchbox if used with an alloy motor mount.
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The Alloy motor cover and 30mm cap head screws.
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UK: £10 + £2 post
USA: $15 + $8 shipping
email to buy
or
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Replaces the stock motor cover, you can use the included screws or re-use the stock screws.
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Lunchbox - Delrin body mounts + carbon braces |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is a set of 4 CNC machined Delrin body mounts with carbon braces.
The stock body mounts are very fragile due to the size and ABS material. Some aftermarket alloy posts can cause the mounting points to break in a big crash.
These delrin mounts are very strong and also larger than stock to acomodate bigger body clips and more material around them.
The carbon braces span the width of the chassis to spread the load from any impacts. This reduces the chances of the fixing point on the chassis breaking.
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4 x Machined delrin body mounts
2 x Carbon fiber chassis braces.
All mounting hardware.
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UK: £26 + £2 post
USA: $34 + $8 shipping
email to buy
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The holes in the body shell need to be drilled out to 6.5mm for the larger body posts.
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Lunchbox - Rear Suspension Brace |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is a pair of replacement lower suspension brackets and brace. Letting you securely fit aftermarket suspension as the stock plastic piece is prone to breakage.
It attaches with metal spacers and hardware shown and gives the original suspension mounting point as well as 3 others.
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2 x Carbon fiber suspension mounts.
Spacers and bar.
All mounting hardware shown
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Instructions are supplied, Installation is straight forward and replaces the stock parts.
The original wheelie bar can be used as well as our optional carbon bar in all positions.
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Lunchbox - Gearbox Support |
What is it? |
Whats included? |
How much and where to buy |
Installation |
This is an aluminium support that attaches to the lower battery tray and supports the middle of the gearbox allowing it to pivot in the middle. The sides can still travel up and down as the suspension moves, but it eliminates the whole gearbox wobbling.
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1 x A lloy support piece
Mounting hardware shown
Fitting Instructions
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Instructions are supplied, two 3mm holes need to be drilled in the lower battery tray.
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