No: 76112, which was built on the underframe of Class 421/3 DTCsoL No:76112, is seen on display at the South West Trains Bournmouth depot open day on Saturday 16th May 1998 at 15:25 while coupled to Class 422/3 DTCsoL No: 76747.
76112 used the underframe & equipment of the original 76112 (ex Class 421/3 DTCsoL) which had it's original MK1 bodywork cut away from the underframe and replaced by a more sturdier steel body bolted on to it's underframe.
At the fraction of the cost of a complete new car or unit, this method creates a cheaper, stronger unit to produce from MK1 designed stock for prospective TOC's or ROSCO's, currently operating these units, who are currently looking to replace such vehicles with new vehicles.

Photo and Scan: Ross Aitken (aos@cableinet.co,uk).