235/powerglide????

[50bomb]

Well I am stumped on this one. I have a 1961 chevy c10 that has the original thriftmaster 235 but whoever owned it one time or another swaped the 3 speed to a 4 speed on the floor. I have a cast iron powerglide out of a 60 impala/belair I like to put in the truck. Now the thing is I see no place to bolt up the crossemember like the 64-66 have the option too. Also is my front engine mount gonna need moved? Sure I would probab have to do some driveshaft work. Just can't find any info on this swap. I want to go with the powerglide over the th350 cause the bellhousing on the powerglide matches the thiftmaster.