I have added a set of VVSS wheels for 1/16 scale Shermans such as the ILK. M4A1 on my Cults3D store.
These are new designs and offer much more fidelity than my 1/35 scale ones and include heavy bearing wheels.
The axle hole size is close to the ordnance drawings so some gentle reaming of the holes will be required especially for the ILK.
Inexpensive chuck reamers on Amazon might be a better option than twist drills since they tend to grab soft plastic and resin.