What is the easiest way to change transmission seals in a 76 Chevy 350?

what seals are u trying to change if it is the front seal behind the torque converter you have to pull the trans and the TQ if its the front pump seal you must pull trans, tq and front pump to replace out put shaft seal you have to pull the driveline buy a repair manual that will help and ask for some help maybe some one with some auto trans experience good luck

i want too change the seal on the shifter side of a 350 Chevy trans