292 to 350 engine swap...Do I need to replace crossmember

[Patsfan34]

I originally had this posted in the 4x4 section but only had 2 responses so I'm looking for a little more input.

I started breaking down my chassis, it's a 68 GMC 4x4 SWB that I'm turning into a 70 Chevy 4x4 SWB. The current engine is getting yanked out but while I was pulling drive shafts and shocks and other stuff, I noticed the motor mounts on the 292 have stands and all kinds of stuff. Once I yank this engine, I can just buy 350 motor mounts and be done right or no? Also, with the 292 to 350 swap will the placement of the tranny and t/case stay in the same place?

Further, if I do need to change crossmembers can I use the one that's on the 2wd SWB frame now and switch it to my 4x4 SWB chassis?

Happy Holidays,

Patsy!