Yup - what they said - it should take about 2.7 qts. till it starts running out of the fill hole. Buy 3 quarts and you'll be good. If you have a spare tranny yoke to insert in the back of the tranny you can fill it first (til when level it runs out of the fill hole); otherwise filling it first will have it running out the back of the tranny when you try to install it -- Very messy....