info on installing Optima D51 as replacement for OEM battery includes changing out the ground (neg) cable , replacing the pos terminal connection clamp. question the D51 has vent holes on both sides of battery positive side will have vent re-connected to that pos side. but what for the vent hole on neg side of battery do you fabricate a vent hose and connect to the vent discharge with a T or is the neg side hole pluged ( this assumes that the battery has continuous venting internally across all cells with in the battery case. some insight is needed thanks for any help and imput
