If you notice in the pic it's always 3rd gear. I have never broken any other gears.

It doesn't always break the drive gear but it breaks the cluster gear every time.

I have gotten rid of every one of my 18 spine Transmissions. I replace them with Jamie passions new 5 speed overdrive's. Same power same clutch no problems. I have three of them one of them is behind my 588 that makes 960 horsepower.

Last edited by Old School; 07/20/18 12:34 PM.
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!