If by chance tour car has the brackets for a clutch pedal it shouldn't be bad at all. My son has a 68 Camaro SS that has a four speed in it but over the past twenty plus years we have put a few different motors in it and have ran a 350 Turbo in it, a power glide, and the four speed. With these three transmission we never had to move the transmission mount or change driveshafts. I think we did have to change the yoke with the power glide but it was always a very easy switch. Your biggest challenge will be the clutch pedal if you don't have the brackets for one under the dash. Everything else will easy and cheap other than the transmission.