Replacing my 318/904 Slapstik in the 70 Barracuda with a 383/727 out of a 67 Charger. Would the 67 have had Slapstik or was this a later configuration? Is it part of the transmission itself or a function of the shifter which will be staying in the car? If it is part of the transmission can the 727 be modded to replicate Slapstik??? Thanks.