ILR - passport expires soon, but need to travel.

[PazCS]

Hi everyone.

My passport is due to expire in 2 months time and I've just found out I need to go to Japan for a family thing just before its due to expire, so I'll need to renew it or I'll be refused entry to Japan as I don't have 6 months validity left. Thing is I have the older ILR sticker in my passport and don't have the newer biometric card and I'm not sure I'll have time to transfer my ILR to the card in time for travel.

Will I be allowed to travel and re-enter the UK if I carry both my old passport with the ILR sticker and my new passport? Or will I have to apply for the new biometric permit?

I'd check the website but for some reason it's not agreeing with my laptop right now.

Thanks for your help.
Paz.