This new to me o6 Dmax is due the 50K Transmission filter and fluid maintenance. I looked for a DIY thread that just covered the basics and didn't see one. Did I miss it or can anyone give me a quick step by step of what is necessary & any tips? How many qurts a fluid will I need etc? After the Stealership wanting $44 for the transmission filter I decided to try the Allison authorized dealer repair place sure enough new filters for $11. Thanks in advance.