TB TD clutch fan differences

Im in the process of doing t tb to td conversion. I bought a td fan hub and I have found that my standard TB fan is is far to big for the hub. im wondering can I use the whole TB fan and hub assembly on my new TD more?

will it have any bad effects on cooling or anything like that ?

The Diesel hub will cut in at a lower temperature, I have put a diesel hub on a petrol for better cooling but I wouldn't advise putting a petrol one on a diesel. Veales do a aftermarket fan for the diesel hub, run you bout $100. That would be the go..