I'm having the transmission fluid and filter changed tomorrow. Going to add some Lucas Transmission Fix. Hopefully this will do the trick. Fingers crossed.
Are you checking the fluid with the car warm after it has been run through the gears? If it is low on the dipstick, then it is low and could cause damage. Would not drive it at all if it is low on the stick.The transmission fluid reads full and then empty on the dipstick.
on my 2010 which is the non heavy duty version transmission as your SS, you check it once the car has hit full temp (really it takes a while to warm up the trans after the engine hits full temp during a drive). once the car is warmed up under normal driving conditions then check the fluid.