mounts

Hello. New to this forum. I have a question. Since my dogbone bracket to engine snapped in half I will need to replace all mounts on car. I have never seen a bracket break like mine and there was no signs the mounts were gone. Got the parts now and going to tackle it. Any advice on order in...

The car seems to run okay but after it is shifted into 2nd gear muffled pops and other noises sometimes happen as car is accelerated thru to 3rd then sort of stops..... it is weird because other than the noise it seems to run okay. Anyone have a possible reason for this? Thanks for your time...