Carryfast:
To be fair there wasn’t much better than Rolls/■■■■■■■■■■■■■■■■■■■■ and steering parts were usually also outside supplied regardless.While MP cabs were arguably better than anything which in house could produce other than a plastic shed.Assembly was the way to go at that point.
You are probably correct, Foden had used Roll/■■■■■■■■■■■■■■ for a few years before the Paccar influence though, and were still making all their own brake and steering components until then (apart from some ‘lightweight’ models aimed at the mixer market that had Stopmaster brakes, and some heavier models began being fitted with Rockwell but still on Foden axles) but when the Paccar influence mid eighties arrived they had lost their ‘identity’ in my opinion and were specced just the same as the UK built competition? They did use a lot of alloy chasiss components though, stamped KW for Kenworth, which made them competative weight-wise compared to Sed Ak’s etc which were far too heavy for our type of work and had crap brakes and suspension! Sad but that’s how it was, I remember touring the factory in the seventies and everything was produced ‘in house’ and it was an amazing almost ‘Victorian’ (which some of it was of course!) experience! Seeing all the brakeshoes cast as pairs before being seperated and the bronze worm wheels stacked up was something you didn’t see at other makers! The smell in the fibreglass shop literally took your breath away, and that was several hours after work had ended for the day. 
As somebody once said regarding a comedian: “A good act, but just went on too long” 
Pete.