Raise the AOD into position. Keep a close eye on the torque converter because it can slide forward and out of the front pump rotor. If the torque converter will not turn when you mate the bellhousing to the engine, you need to lower the transmission and remate the converter and front pump. Remember that with an AOD, youre marrying not only the converter and pump, but also the separate, inner overdrive shaft. Youre going to need slightly longer bellhousing bolts for the AOD. The C4 bellhousing bolts are nearly 1 inch too short for the AODs thicker casting.