Cracked Tranny Case

[thom1301]

Hey, my little brother just cracked his second transmission case. He has a '95 Eclipse GST with a fully built engine and a 60 trim. The transmissions cracked near the mount both times. When he built his engine, he also installed a phantom grip and solid mounts. Each transmission has lasted only a short time. Any ideas?

I'm sure he's making more power, but that would brake the transmission on the inside, not the case itself, right?

Thanks,

Travis