Droning noise over 50mph!

Hi guys, wondering if you could help and offer a bit of advice.

I have a droning noise from 50mph upwards, sounds as though its coming from the n/s.

I have recently changed a tyre on that side, i have A/T's all the way around, but the new tyre is a different make with a slightly different tread pattern, would this cause the noise.
I have done this in the past and have never had a noise like this before.

I have jacked up each side and check the freeplay of the wheels and they all seem the same with no tight spots concerning wheel bearing, but due to the prop attach, can't spin them full 360 degrees.

If anyone could help.

Thanks

Lloyd.

Tyres with most tread biggest diameter need to be on the rear.

Hoyt-Protec said:

Tyres with most tread biggest diameter need to be on the rear.

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Agree again ! also touch your vcu after a run , if its very hot ,you need to match the tyres asap !