Very much depends on what type and size of Ford Transit you have. Vans are in MoT class four if their gross vehicle weight (GVW) is below 3000kg and in MoT class seven if they are between 3000kgs and 3500kgs. You can find your vehicle’s GVW limits in the owner’s manual. They are also usually detailed on a plate or sticker somewhere on the vehicle itself. This might be on the body behind the driver’s door, on the back of the fuel filler cap or in the engine bay.