3.31:1 on automatics and 3.55:1 on manual transmission 2005-2008 mustang GT's. How do you change rear end fluid 1971 mustang? 5 w 20 for the 3.8 liter V6 engine in a 2003 Ford Mustang What is the mileage interval for changing Transmission Fluid Have a 2003 Mustang, manual shift and was advised by the dealer today when in for 28000 mile oil change that it should be changed. For The engine in your 2004 Ford Mustang should be running when you perform a transmission fluid level check, otherwise it will be inaccurate. The video above shows where the transmission fluid dipstick is located in your Mustang and how to check the transmission fluid level. The average cost for a Ford Mustang GT manual transmission fluid change is between $67 and $117. Labor costs are estimated between $35 and $45 while parts are priced between $32 and $72. Estimate does not include taxes and fees. 2016 ford mustang gt premium in gilbert az san tan automakers have gotten better in recent years about labeling or color coding dipsticks the ford performance lowering spring 20mm set gt350 gt350r 2016 2019 magneride equipped gt transmission fluid change how to filter by castrol transmax atf 4 automatic transmission fluid part number 15a9fa Check [] The Ford Mustang has offered both a manual transmission and automatic transmission option from 1979 all the way to 2014. In this article, we'll cover the manual transmissions that were factory equipment behind V8 Mustang engines. Follow these steps to add transmission fluid in a 2003 Ford Mustang GT 4.6L V8 Coupe. Complete video instructions to add transmission fluid to a 2003 Ford Mustang GT 4.6L V8 Coupe. When and how to check fluid level (engine should be running) I have a 2003 mustang 6cyl with an automatic transmission. I am a better than fair shade tree mechanic. Here's my problem. The transmission slips in the morning when it hasn't warmed up. It takes up to 30 seconds to engage. I took it to kwik lube and had the transmission servi