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Hey All

So I checked my transmission level the yesterday while filling up and it was high. It has never been high before. I checked the level when it was cold and it was at the same level. I just ordered a ATS deep pan and 18qt of Amsoil. I plan on changing this when everything arrives, i am also going to change the filter while i am in there. Is there anything i should look for and or do while i have the pan off. Truck is a 2013 F350 Dually, 72000 miles running a Mini Maxx with a delete pipe and a S&B Air intake.

Thanks for any help.
 

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Excessively high ATF levels will cause the fluid to aerate resulting in shifting problems, overheating and foaming that can cause fluid to vent from the transmission. when you remove the pan simply inspect the bottom for debris, Some dark gray metallic goo found on the magnet inside the pan is normal. Always check and adjust your transmission fluid level with the truck parked on level ground and with the transmission at full operating temperature: drive the truck for 15-20 minutes (not idling in the driveway for 1/2 hour)
 

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AND- you check it with the engine running. Checking it cold or hot with the engine off will always show high.
 
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