If I have interpreted this right, are the North routes the ones that used to be run from the garages at Possilpark and Parkhead?
Also on a sidenote, what division does the 87 (Glasgow - Auchinairn via Springburn Centre) come under now, and which part of the company (Number 1 or 2)? When it was the 45 this was a former Glasgow Corporation/Strathclyde Buses route, with the Kirkintilloch, Kilsyth, and Cumbernauld routes being the former KCB (is that the Number 2 company?).
Caley North predominantly consists of Ex-Cumbernauld routes.
a few routes which spent time operating from cumbernauld were the x3, x4, x5, 18, 36, x80, x85, x86, x87, 88, 213 and a few assortments of SPT work at the time.
The 89 was introduced when all routes moved to caley, essentially replacing the 24 & 27 which was operated by Midland Bluebird via Kilsyth to Glasgow, at one point the 89 & x86 were in theory competing with the 24 & 27, but it was simply a planned operating for Midland Bluebird to pull the 27 and partially the 24(which now operates in part as the current Larbert Route - 35).
The x4, x5 & x80 were withdrawn because they said at the time they weren’t commercially viable because stagecoach was absorbing the passenger load in Cumbernauld, however from what I remember these routes did ok.
Caley North currently operates the x3, x85, x87, 87, 88, 89, 89B, M3 & 128, if your a North or East driver, I have seen drivers driving all of these routes, many ex-parkhead & Cumbernauld drivers have learnt many routes.