I’m having an issue while going 60mph plus. I changed out the front and rear differential fluid this far. The problem I’m having is while accelerating at or over 60mph, if I take my foot of the gas it stops. It’s a “wohwohwoh” type of sound, like the tires going around, but loud, and only while on the gas. I am having transmission trouble, too. From first to second is a hard shift, while every other gear shifts great, could this be the transmission I’m hearing? As my research goes I’m finding the hard shift could be fixed by replacing the transmission filter and accumulater. Thanks in advance for any help.

 

5.3 liter? Do you have any codes at all? How many miles?

 

Yes, 5.3, no codes, it has 179000 on the dash.