I posted about the impressive
Dutch M41 DK-1 Walker Bulldog a while back, but Tank Encyclopedia as has just put up an article about the 90mm Cockerill-armed Belgian
M41 LCTS 90. This popped up in 1994 and is perfect timing for armies wanting to upgrade their M41s (I'm modelling a Spanish one modified for T2K one now but not with the LCTS turret).
Essentially it just drops the LCTS 90 turret on the basic M41 hull and gives it a gruntier motor.
https://tanks-encyclopedia.com/m41-lcts-90/