Does anyone know what the clearance is from the top of a 3 speed transmission to the floor panel?

What we are seeking to do is mount a Powerglide transmission from a 53 Chevrolet sedan in my brothers 51 3100. My working hypothesis is that the 3 speed transmissions and bell housing on the pickups are the same as the ones on the cars. If the cars are able to accommodate both the 3 speed transmission or Powerglide then a 3100 pickup should be able accommodate a Powerglide. My concern here is transmission to cab clearance.


Any thought on this?

(I already know the factory rear engine cross member will not work for this application and I already have the material to make one that will.)

Thanks in advance
Walt L. Williams
La Verkin, Utah