renjaminfrankln
Full Access Member
Yep if you cut the fuel and the sound persists it’s not the fuel related. I think you’re at the point where it’s the last chance with the shop, they may make it right. Maybe check the trans fluid to make sure it’s not way overfilled with gear oil. I’ve seen all kinds of crazy stuff put in the zfs, but they take atf. However it’s more than likely something has been changed recently, and that would be the clutch...
I drained the ZF5 when I got the truck about 2 months ago, normal looking ATF came out, refilled with Mercron V. Did not overfill, level was right at the fill plug.