This morning while crossing a highway after stopping at the intersection, I heard a fairly noticeable "SQUONK" noise coming out from under the truck. If I had to guess where it emanated from, I would put it in the transmission area.
Ambient air temp 28F. I was about 10 miles from the starting point. Trans temp 102F.
Caulk04 bypass installed. I performed the last drain n' fill about a month ago, about 25 miles after the original DNF. I used Valvoline MV Maxlife for both fills. (Using the green ZF procedure both times.)
I've heard this noise once before, under the same conditions, crossing an intersection after braking to a stop. That time I attributed it to a front brake settling in (I had just pulled them apart to check and grease them.)
The ZF shifts wonderfully IMHO. I notice no other issues.
I do have a Hellwig sway bar installed on the rear axle with poly bushings which I haven't greased for awhile. I was crossing smooth highway concrete.
I'm not quite sure what to make of this.
Ambient air temp 28F. I was about 10 miles from the starting point. Trans temp 102F.
Caulk04 bypass installed. I performed the last drain n' fill about a month ago, about 25 miles after the original DNF. I used Valvoline MV Maxlife for both fills. (Using the green ZF procedure both times.)
I've heard this noise once before, under the same conditions, crossing an intersection after braking to a stop. That time I attributed it to a front brake settling in (I had just pulled them apart to check and grease them.)
The ZF shifts wonderfully IMHO. I notice no other issues.
I do have a Hellwig sway bar installed on the rear axle with poly bushings which I haven't greased for awhile. I was crossing smooth highway concrete.
I'm not quite sure what to make of this.