Installing a 727 Torqueflite

1. Are you wanting to keep column shift?? If so then you need to make a new piece of linkage between column shift bell crank and trans shift position arm.
2. Yoke is standard Mopar 727.
3. 727 is much longer then BW, so you need to shorten the driveshaft the difference in length between the two transmissions.

purple72Gremlin wrote: what is the car?   think you need the crossshaft out of a 72 up car.

Well, here's the difficulty of keeping the column shift. You have to keep the ratios of the arm lengths of the column and the trans, while adjusting for the different movement between the BW arm and 727 arm, and any arms between. Start by measuring the length of the BW and 727 arms from center of pivot to center of where the linkage connects. If they are the same you still may have a problem, they would need to move the same amount of arc also. If the arcs are different (number of degrees the arm moves) the shift quadrant (where it reads on the column) will be off. The column will move a bit more than shown, as the detents are on the trans, the pointer will just be off.

Let me tell you this much with regard to this mod. I just did a 904 to 727 change in my 1970 Javelin (console shift). While it is not column shift the premise should be the same. You may be able to look up the shift lever for the BW to see if there was a difference in the part number between a column shift and a console shift. If there is only one part number and no notes in the parts book about a column shift it is fairly safe to say that the BW transmission shift lever has the same throw length for the column shifter as the console shifter. Therefore, what I am about to say should be correct. For me, the 904 went right in (out of a 1973) with only modifying the linkage using the shift lever that came on the 904 stock as it was straight out of the 1973 Javelin with console shifter. Furthermore, the throw length of the 904 lever was perfect to match up with the stock console shifter which was previously responsible for shifting the old BW trans. The only mod that we had to make was to drill new holes in the trans mount and lengthen the shift rod. Now, when I just changed to the 727 it threw the gate pattern way off. However, the 727 shift lever was also around an inch shorter that the one that was on the 904. Thank goodness that the two shift levers were interchangeable as what I selected to do was to use the shift lever from the 904 on the 727 which in turn corrected my throw length and the gate once again aligned perfectly. Hope that helps.

In case you need to know.
1970 Javelin with 904 = 50" driveshaft center to center
1970 Javelin with 727 = 46" driveshaft center to center

Standard mopar 727 slip yoke but uses an adaptive u joint to match up to the driveshaft.

No...I installed a 401/727 combo in my 69 AMX using the stock trany crossmember with a 72 up 727 trany mount....
APD has the correct speedometer cable others may have it too...the only real mod was  a new hole needed in the tunnel for the speedometer cable to the trans.....I am using a B & M floor shift.....