The RM-189 is a great upgrade to any QuickTime Ford AOD/AODE/4R70W bellhousing as you center it off the transmission pump and connect it using the pump bolts. In addition to needing the proper length, it is also important to have enough clearance for the torque converter. Also, these Grade 10.9 zinc-coated bolts will outlast most anything else and likely won't be found at your local hardware store.
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