T56 Magnum crossmember fitment

[Big Red]

Can anyone help me with T56 Magnum crossmember fitment? I'm working on a 1969 Camaro, big block, with DSE subframe. I have the T56 Magnum kit from American Powertrain and I can't get the crossmember to fit. I want to use 1/2 height body mounts. This crossmember will not fit even with original height body mounts. Does anyone have any ideas or suggestions?

Thanks for your help!