Switch exhaust housings

Alright, so my t3 turbo took a crap on me so i bought a t3 that i was told came from a volvo. well when i started looking at the exhaust housings i noticed they were slightly different,the holes for the downpipe flange are a little bit closer together on the new one. well since my downpipe flange is made for my old turbo, my question is could i just swap exhaust housings since they are the same size?

If the exhaust wheels are the same, the housings are interchangable.

they are both t3’s with .48 ar exhaust housings, whats the best way to make sure they are the same wheel? i need this thing on asap

Make sure the outer diameter of the exhaust wheels are the same. mic’ them.