WHAT WAS THAT? YOUR DIFF JUST FELL OUT...

It might not happen yet, but the thin sheetmetal that holds the rear diff in, might not like that extra power that you just found on the dyno. As your project grows in power, make sure the rest of the chassis keeps up with appropriate support.  For cars that are more or less stock in the back except for those Mickey Thompson drag tires, supporting the diffmount might be necessary.  We built these plates for a customer that had such a thing happen and as we bring up the conversation, more and more we are finding 

-Laser cut 0.120" Cold Rolled Steel, great for welding.

-Single plate covers both diff stampings and supports for more power handling.

-Requires professional installation

-Requires painting and corrosion protection