This is by far the best, you will be thanking me later. You can stuff all 5 pints in it and fill it in one sitting, no more going back and forth and spilling fluid everywhere. This is especially handy when doing the final fill procedure of being under the car while its running and filling that last pint before it spills out the fill hole....that is a nightmare with a hand-pump, the exhaust is right next to the fill hole...with this you can do it super fast and not get burned. it is worth every penny
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
also works great for your diffs and tc, just look for extra fittings for it on Amazon, they make a super tight one to reach the TC fill hole without having to take down the transmission cross brace