Read the tag on the OEM diff cover. It probably states somewhere around 44 oz. You have 96 oz in it if you used all 3 qts. Rubi's have a drain plug on the lower side. I would not put in more than 48-50 oz.......so you need to drain about 48 oz.
If you don't, here's what will happen:
1. The excess gear oil will come out of the air breather line by the radiator. It will make a huge mess in the engine bay.
2. The excess gear oil could cause one of the diff seals on either side of the pumpkin to blow out. This requires pulling out the locker to get to the seals.
It helps to read the FAQ &/or owner's manual before doing a job like that.
If you don't, here's what will happen:
1. The excess gear oil will come out of the air breather line by the radiator. It will make a huge mess in the engine bay.
2. The excess gear oil could cause one of the diff seals on either side of the pumpkin to blow out. This requires pulling out the locker to get to the seals.
It helps to read the FAQ &/or owner's manual before doing a job like that.