Vibration in steering wheel

Hello all. I've not long bought my T-reg110. There was severe shudder at about 45mph which a wheel balance sorted out, but still have some vibration in the steering wheel (a couple of centimetres 'left-right' movement of the wheel if that makes any sense) at about 60mph....slowing to 55mph makes it pretty much go.
I've read other posts about vibration but its not the 'death shudder' others have had. I can kind of live with it but would rather sort it out. Any ideas would be much appreciated.

Forgot to mention there is a slight lean towards the drivers side...connection maybe??

give your steering shaft UJ's a wobble, check for play there.

Can you jack each front wheel off the ground and see if there is any play when you rock each wheel. Hold at 6 &12 and check and 3&9 and check. Make sure other three wheels are chocked properly.

Check all your wheel nuts are still there - ask me how I know!

Thank you very much for all the replies....will give your suggestions a go soon as I can!

Get the wheel balance checked again. Sometimes it's not right the first time. I had a lot of that kind of thing with my Transit.

Mine had this recently and it was a lose panhard rod, I checked everything else but that, now its ok.

And check preload on the swivel housing steering pins.

As above, check your steering joints - there are a lot of them! Ideally, jack both wheels off the ground and support using axle stands, then get a pry bar or similar and check for any movement around the track rod ends and other steering joints. They do wear out fairly quickly and can need replaced every few years. The steering drop arm joint is where I would start.