ROYAL Mail has bought more than 400 rough terrain underbody protection kits for appraisal with its fleet of Vauxhall Combo vans. Made by chassis engineering specialist Safeguard, the rural duty units are priced at £278, plus VAT and delivery.

They comprise an aluminium alloy sump guard, steel mounting frame, fitting hardware and a pair of replacement front springs to give increased ride height and ground clearance. Vauxhall Fleet Operations will formally approve the kits once testing has been successfully completed.

Where a Combo is used in rough terrain, particularly with a full payload, the underside of the sump area of the engine, exhaust and the lower part of the transmission are said to be vulnerable to grounding damage. A replacement engine or gearbox could cost an operator up to £1,000.