[Paul Ceasrine]

Don't know if any of you guys remember the Chrysler Performance
Blue & White book (really an encyclopedia with all the special part #'s and trick stuff).

P-F Flyer.
No, the 67' Cuda with the 383/280HP engine was only available
with 3.23 Sure-Grip Posi.
The front disc brakes were mandatory on that car with the 383.
The 3.55 and 3.91 gears were not available on that car.
But, a little trick. If you ordered the special 'Tow Package', you could get
stiffer rear shocks (1 1/8" piston), and short-helper leaf spring, and
4.10 gears.
Not sure if a heavier clutch disc was provided on the 4-speed,
but Dino said the A-727 transmission came from the factory with a
B & M valve body RV/Towing shift kit on that option.
PC
A-727 transmission came with a B & M valve-body shift kit