sl8anic

Hey guys,
Just got a new 06 GT convertable with a standard tranny and perhaps an odd "issue". I'm new to Mustangs and I'm not entirely sure how it's supposed to sound when you're shifting, so here it is.

There's a "clunking" noise coming from the shifter (tranny?) area almost every time I shift into 2nd gear and up or down, unless I baby the clutch in. It's very obvious when the RPMs and gear box speeds aren't quite matched, i.e. when the car rocks back and forth a little. Not grinding or anything, just every time (well, almost) you shift - and it's not 100% smooth, with the car "stalling" a little - you hear that clunking noise...

I test drove a V6 version of the car and I don't remember hearing it, or perhaps I missed it. Any takers? Thanks!

AD

Blackness

The Tremec is noisy...The sound of a tough tranny!

DAVE05GT

I have/had this problem too, but when they replaced the rear end housing everything got a lot tighter. You could just shift at 5000+ rpms everytime and you'll never notice it!

sl8anic

Hmmm, rear housing... Doesn't sound too good... Is it worth taking it to the dealer? Kinda' sucks too, it's a brand new car. Now, do you suppose it's like that with majority of 05-06 GT's?

AD

05ROUSHER

tHERE WAS A tsb ON THAT ISSUE. ICAN'T REMEMBER THE NUMBER, BUT IT BASICLY SAID THAT IT WAS A NORMAL CONDITION. tHERE IS CLEARANCE CONDITIONS THROUGOUT THE DRIVELINE. i'LL LOOK SOME MORE AND SEE IF I CAN FIND THE NUMBER FOR YOU TO REFER TO.

sl8anic

Thanks '05!

AmericanMuscle4.6GT

yea, ive got an 05 GT, and the shifter makes it quite a challenge to be smooth..............shifting into most gears requires really finessing the clutch to pull off a really smooth shift. 2nd gear i dont notice as much of a problem, but skipshifting from 3rd to 5th i get a clunk noise. Also, when trying to downshift into 1st at about 20 mph, the shifter resists as a whining noise winds up, but as the whining noise gets higher, it becomes easier to slip it in. I realized that this was probably the synchro matching speeds of the input and output shaft. I have driven many other manual cars but none of them do this as loud as my mustang.
That having been said, i think the shifter in the car is absolutely fantastic, very clean, snick-snick shifting for the most part, and theres absolutely nothing like blasting off a 1-2 shift at wide open throttle in this car.

05ROUSHER

Here is the notice. It was on the OASIS

#18754 2005 Mustang with Manual Transmission - DriveLine Clunk

"Some 2005 mustangs equipped with manual transmission may exhibit a "CLUNK" noise from the driveline during gear changes and/or quick acceleration after coasting (tip-in clunk). The clunk may be present in multiple gears and isconsidered a normal characteristic caused by Driveline Lash reacting to rapid response of the engine when the throttle is suddenly opened. "

There is a little more, but it basicly says to compare it to a like unit. If yours seems excessive after the comparison, let the dealer look at it. Hope this helps.

ford4v429

mine had a very slight backlash clunk- barely noticable...till I took the wife out to try the stick. A few bucking broncos and I guess its broke in now- quite noticeable with only 300 miles on it.

I dont buy the 'normal' noise stuff- tremec might have a reputation as tough, but the older trannys never made as much noise...synchro whine is about normal in mine, but backlash noise is pretty bad. Hopefully the shelby 6 speed will sound better and will be over the counter piece in a year or so...I think some of it might be not just tranny, but rearend and slipyoke spline slop too...havent looked yet.

sl8anic

Thanks man, looks like it's nothing out of ordinary for these cars