I sheared a set of 4.30 gears at the line @ Norwalk and never broke the staging beem. Lots of runs on those gears in a well built 9 inch so racers can and do break EVERYTHING given time and enough horsepower.

1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time