down rating

hello truck net quick question can a 13ton chassis cab truck fitted with crewcab be downrated to 7.5 ton thanks in advance jt

There is a difference between downplating and downrating a goods vehicle. Downplating is really a paperwork exercise to reduce road tax; downrating to bring the vehicle into a different driving licence category will possibly require physical alteration to the vehicle. Downplating will not affect the braking efficiency requirements which will remain as before.