Pretty much the same difference for 72.Not sure if a '72 is the same but I pulled the inner cable out of the sheath from the tranny side on my '67 with T400.
Much easier to get to than trying to get under the dash and take loose from the speedo.
I lubed the cable up from one end to the other as I pushed it back in the sheath.
I had the same noise problem with a new cable and lubing it up solved the problem.
Hope that helps