8v92 475hp exhaust issue

[Iceni John]

your transmission isn't running hot=extra heat? Downshifting on grade? my trans (8v92 with allison) in last coach ran 20 deg higher than engine until I got correct fluid in it. FWIW

What fluid was previously in it, and with what did you replace it?

John

[tr206]

It was rebuilt shortly before I bought it repair bill just said bulk oil I haven't changed it I have replaced the filter like I said earlier smells like atf and it's red. very low miles on the oil due to age I should change it soon though.

[tr206]

Well I said screw checking the back pressure removed and installed new exhaust new is 3 1/2' long straight pipe total length including 1 90 degree elbow that's it seems to run much different, first time I have heard the turbo whistle ever. Hope that was the overheat cure we'll find out in the future.