From an A-Body modified to fit a regal frame.You have to drill holes in your frame for this cross member to bolt up.TH350-400-2004R maybe others. This gives U the ability to have duel exhaust on a G-Body $40 plus shipping
G Bodies started in 82 A body designation was robbed for BOPC downsized fwd sedans in 1981. So it probably is for the 78 - 87 Regals (A / G body )
This looks nothing like the one on my 78. Im sure it could be made to work. I ended up getting one off a 79 Camino that had had a v8 in it. Still have to modify it slightly to fir the TH400 trans.