Stock class transmission case breakage

[Jim Kaekel]

I've broken just one case in 30 years of racing and that was related to a U-joint failure....knock on wood!

[tracyjw]

Originally Posted by Alan Roehrich

Not a problem for us. However, we already approached NHRA, they are unwilling to accept aftermarket cases in Stock Eliminator. Well, at least for the automatic transmission cars.

The racers that I have spoken to are interested in using the "Ultra-Bell" that bolts to the stock transmission case to help eliminate breakage and for safety concerns. The transmission case is not a concern at this time. My purpose of participating in the forum is determine if there is a problem with case breakage or a concern for safety. Thank you for input.

[Alan Roehrich]

Originally Posted by tracyjw

The racers that I have spoken to are interested in using the "Ultra-Bell" that bolts to the stock transmission case to help eliminate breakage and for safety concerns. The transmission case is not a concern at this time. My purpose of participating in the forum is determine if there is a problem with case breakage or a concern for safety. Thank you for input.

Our only breakage issue was a TH350, and I'm sure that was a driveshaft problem. Had we had a bolt on bellhousing, I'm sure the case would have broken at the next weak point, behind the pump. That would have put fluid on the track.

The safety issue is a good one to pursue, however, if you need a flexplate shield, you also need a transmission shield.

Your Ultra-Bell helps with the flex plate shield, and that's great, but that leaves the racer with a blanket as the only option for the rest of the transmission, since you cannot cut or modify the form fitting carbon fiber style shield, which, for many of us, is the only thing besides a blanket that fits in the tunnel.

[tracyjw]

Originally Posted by Alan Roehrich

Our only breakage issue was a TH350, and I'm sure that was a driveshaft problem. Had we had a bolt on bellhousing, I'm sure the case would have broken at the next weak point, behind the pump. That would have put fluid on the track.

The safety issue is a good one to pursue, however, if you need a flexplate shield, you also need a transmission shield.

Your Ultra-Bell helps with the flex plate shield, and that's great, but that leaves the racer with a blanket as the only option for the rest of the transmission, since you cannot cut or modify the form fitting carbon fiber style shield, which, for many of us, is the only thing besides a blanket that fits in the tunnel.

I understand your position and thanks for all your input.

[Phillip marvetz]

I have seen several th200 break the cases, somebody even sells a girdle to prevent it.