I just bought a 78 HD FLH 1200 electra glide. Can anyone tell me how to check the trans gear oil, there is no dipstick so what level should the oil be at when the bick is standing straight up? Also what type of oil to use and how much should be used when oil is being changed? I have called several diffeent places and keep getting different answers. I am going to buy a service manual but until I receive it, anyone help would be greatly apreciated