Volvo Bricks

Hi, just got myself an 740 and I wanna install an NRG Short Hub with an Quick Release, and all I find is “only for 240” Can someone tell me that it doesn’t matter it’s same thing or if there any differences I should learn about?
I’m new to the Volvo scene
Jimy Ratcliffe
I'm thinking of buying a 940 2.3. I was wondering how they are to live with everyday and how much real world mpg they get.
    Drop to upload media