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Old 03-04-2007, 01:48 AM
FX4 FX4 is offline
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Join Date: Jan 2007
Location: Naples FL / Pine TWP PA
Posts: 1,154
Default RE: 2007 Tranny problem!

08 Trannys are not going to change so I have read. I rode mine for about 500 miles with Redline and the tranny just shut up. It was very sudden and strange. There is a fifth gear whine but I really have to listen for it.

Quote:
ORIGINAL: oldbag

I had Redline in mine before I took it to the dealer for trans noises. They were told by HD to try Formula+ in it. When I got it back it sounded as bad as it ever did. I changed it back to Redline and the difference is huge. It is a lot quieter and shifts a lot better. Maybe I can stand it until the '08s come out and then this clatter wagon in out of here!
Quote:
ORIGINAL: barkster99

Am I the only one with concerns about running a heavier tranny fluid? Yeah, I imagine if you get the fluid thick enough, it will help with the clatter. It also won't lubricate like it's supposed to. I'm no fan of HD factory products but I have to think they recommend Formula+ with lots of legitimate research behind it. And heaven forbid you do end up with a genuine breakdown. What do you supposed dealer's first reaction is going to be when he finds out you're not using HD fluid???

Of course, all of these non-HD fluids will tell you that "independent laboratories" have proved their worth. Yeah, right. Show me an '07 with 50,000 miles on non-HD fluid and I'm on board. Until...I'm hesitant. (Though, if dealer can't do something once this snow melts, I may experiment with the rest of you.)
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