4th Gear Lock Up

[huntsg]

Can someone tell me if adding a 4th gear lock up pressure switch is a good idea? What are the benefits? I have a rebuilt stock transmission. Thanks.

 

[TURBOPOWERED68]

i used it for a long time and didn't mind it
BUT
my trans guy told me it wasn't good for the trans to shift into 4th and LU at the same time.
So i went with the OE set up..

also the LU will stay on even if you play with the gas pedal at high HWY speeds.