The actual bodywork of a box trailer is normally a thin skin of aluminum with a wooden/steel support frame, sometimes with a fibreglass roof. the cab itself can be steel or fibreglass.
I used Lucas stop leak not a fix but it does work....
You cannot fit a traditional hard style roof box without a roof rack, otherwise the roof box will scratch the surface of the roof. If you want to get a roof rack then you need to go to Carracks.co.uk , you can choose exactly which one you want to fit a roof box to. You can actually fit a soft style roof box to your roof without roof bars, something like a Thule Ranger 90 or a Green Valley Pack and Drive unit. This is normally foldable and can be stored using less space than a traditional roof box. Roof bar systems or Roof racks are normally manufactured by Thule, Mont Blanc, Yakima or Green Valley.
The Thule roof box is an aerodynamic box that fits on top of an automobile. They are very useful for storage and are watertight in case of unexpected rainfall.
Get in the back of a lorry and get a cardboard box put in the top of your head
The vehicle is a horse box - either towed as a trailer or a specially adapted lorry.
in the roof of the glove box
you can try wynns gear leak stop-it thickens oil and swells the seals.
One can buy a car roof box in the High Street at stores such as Halfords. If one prefers to shop online, one can buy a car roof box via Amazon and also via eBay.
the top of a box is called the top or the roof of the box . not very hard
A person can purchase a used Roof Box on eBay, the Sears website, and the Amazon website. Craigslist and Discount Tramps also advertise used roof boxes on their websites.
Without seeing the vehicle it's hard to say--it could be a van, a box truck ("lorry" is British for truck), a dump truck, a tanker or anything else you want.