Powerglide install

[Captmatt]

I'm getting ready to replace my 3 speed manual with a powerglide trans. My truck is a 64 c10 with a 250 inline 6 and I have two questions. The first question is do I need to remove the rear engine mount crossmember or can it stay in place ( looks to me that it needs to come out.) ?

The second question is regarding the rear trans mount. There is currently a factory crossmember with the parking brake hardware attached in the general area that I will need to install the trans mount. I'm not sure what to do here.

Any help would be greatly appreciated.