what exactly does the converter lockup do ??? i know i removed mine and i killed the computer in the car so im goin to opt for the lockup kit for a 700 R4 from jegs. but i think if i better understand what it does ill be a little better off

 

mechanical coupling of the convertor.

Better mileage, lower temps.

 

Locks the gut together so the converter turns 1:1 with no internal slippage. Less heat made and better milage.