just as the topic says, i forgot where it grounds. thanks in advance!

 

the batteriy is grounded to the frame just below the battery, and from that point it is also connected to the transmission housing. you can make your own ground wire out of 4ga wire. just besure it connects to the frame and the tranny.

 

Think where the majority of the current goes, to the starter. So the largest grounding cable must go right near the starter, somewhere on the tranny. Next are all the distributed loads throughout the car, that requires a ground to the steel body. Next are the sensors on the engine, so a third ground must go from the engine block and head to the chassis.