Bought this to replace the mount in a 1978 Dodge D200 transmission crossmember, where the mount drops into a slot and then secured with a 1/2" bolt to the crossmember.
First, it's thinner gauge steel than the OE part.
Second, the bolt hole is just under 1/2" so I needed to bore it out so it would accept the OE bolt.
Finally, the bolt hole itself is too long, so I needed to grind it down so it would fit in the crossmember slot.
It might work out of the box for you, but for me it required some modification.