Stock class transmission case breakage

[Grant Eldridge]

I have broken several TH200 cases. In my situation, I fabricated a brace along the passenger side of the case connecting the two factory "ears" made of 1/2" thick aluminum about 1" to 1 1/2" wide. In addition, I bought a Turbo Action cast aluminum deep pan to help stiffen the case. The third item was to install a torque strap on the front left cylinder head to the frame. After those changes, there has been no further breakage. If you do these changes, be prepared to notch the crossmember to clear the pan on a Camaro or Nova. Also, the transmission cooling lines need to be figured out before installation of the transmission because the brace (at least the one I made) makes it almost impossible to install the upper line afterwards in the car. We used a 45 degree angled top end on a hydraulic hose to solve this problem for our cooler lines. Hope this helps.......

Grant Eldridge
E/SA 6650