trans brake, how do they work

[NormD]

Can anyone explain to me how a trans brake used for strip racing works??

Thanks,
Norm

 

[66bluepony]

Wow

Goes in forward and reverse at same time.

 

[10secgoal]

Locks reverse band on while your in first gear. Put a load on the converter like foot braking. Let go of button and trans releases, but stays in first. Away you go.