I found this online for a 1965 Impala driveshaft. I'm sure 66 will be the same. Can someone confirm this?? (Excludes TH400 which is shorter)
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
My car is on the ground and I'm hoping someone has a shaft lying on a shelf. If not I'll have to climb under mine and measure.
if B body is the same as A body in reguards to PG driveshaft being the same as 4 speed I can check the one that came out of the grande