By the 80s it was very rare to see any loco in GE land that didn't have three axle bogies until the arrival of the AC electrics. Primarily we had 31s, 37s and 47s and that was it except shunters and units.
I remember VERY occasional 40s and 45s but they really were very rare by my time, 83 onwards. I have photos of pairs of 20s at Ipswich but again they were very rare, and I can't remember ever seeing a 25 there. 56s were a later arrival on some of the stone traffic but not common. Simple thing was that Anglian drivers didn't know other traction so it didn't get there.
Andi