Hi Attilat
What car (make, year model) is this for?
Looking at
https://www.volvopartswebstore.com/p...7/3516569.html it looks like it would fit
Volvo 850 1994, 1995, 1996, 1997
Volvo 850 2.5l 5 cylinder Fuel Injected 1993
Volvo C70 Convertible 1998
Volvo C70 Coupe 1998
Volvo S70 1998
Volvo V70 1998
Volvo V70 XC 2.5l 5 cylinder Turbo 1998
When I last worked on the rear brakes (replacing with braided hose) on a 1998 V70 the manifold didnt break.
There is another connecting block on the transaxle which is mostly plastic, and it is cheap and available from Volvo. Probably worth getting one of those.
Have you asked a Volvo dealer for that part?
If you are going to replace the hard brake lines that go out to the wheels, then you could probably cut them near that manifold and dismantle it off the car which should reduce the risk of breaking it.
Or if you are unlucky, someone could probably provide one from a breaker.
Steve