Manual Trans. Thud when shifting

[Phlyguy]

40k as optioned. What i got it for, thats a different story. Come on Paul, you know all this could have been avoided with a different trans...

Personally, the GERMAN manufactured Getrag is excellent...exactly why there is such a vast difference with it being assembled (parts come from Germany as well as other suppliers but they are all shipped as a "kit" if you will to the assembly plant outside of Macau) in China baffles me unless Quality Control is lacking? If I had my druthers, I'd opt for the Borg-Warner unit previously used on the earlier Shelby's! :first:

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[Phlyguy]

To be fair Germans had a lot of transmission problems in WW2 too, not all German engineering is roses.

You're right on that account! The German Tiger Tank was difficult and costly to manufacture and the tolerances were so damned fine that it was a nightmare to fix in the field. By contrast the Russians mass produced the T34 which was a bucket of bolts by comparison but they produced thousands of them so that when they broke they abandoned them or could easily strip them completely with common tools and cannibalized them in the field to keep the others going.

 

[aeropaul]

The GT base is $32,100 MSRP. What you paid is a function of what options you added to the basic car. You are not paying for a $40k+ basic car. I also have a $40k GT, but that's because I added enough options on top of a $32k car.

Plus, the rest of the drivetrain (minus the engine) and body and suspension are engineered to be cost effective for a $23,600 car (base V6), yet robust enough for a V8 GT.

And No, I don't know that the "problem" would be avoided with a different transmission. No one knows that for a fact. And it could have probably been engineered out with a compromise somewhere else (cost or compliance) with the existing transmission. As for me, I'm not worried about it, but I can't help but laugh a little bit at the hand-wringing over this. Until I see some actual instances of this little thud being an indicator of major failures, I'm going to continue to not worry.

 

[dwaleke]

I wouldn't expect this condition in a 10k, 20k, 30k, 40k, 50k, etc car.

Demand better and then that is what we will get. Settle and things will never change.

 

[Ruby305GT]

The GT base is $32,100 MSRP. What you paid is a function of what options you added to the basic car. You are not paying for a $40k+ basic car. I also have a $40k GT, but that's because I added enough options on top of a $32k car.

Plus, the rest of the drivetrain (minus the engine) and body and suspension are engineered to be cost effective for a $23,600 car (base V6), yet robust enough for a V8 GT.

And No, I don't know that the "problem" would be avoided with a different transmission. No one knows that for a fact. And it could have probably been engineered out with a compromise somewhere else (cost or compliance) with the existing transmission. As for me, I'm not worried about it, but I can't help but laugh a little bit at the hand-wringing over this. Until I see some actual instances of this little thud being an indicator of major failures, I'm going to continue to not worry.

That's your take on it, that's completely respectable. Everyone is entitled to their opinion and point of view, makes for healthy forum discussion. I believe you to be truthful and informational in your posts, I honestly value what you have said previously regarding this issue and opinions around the forum. My take on it, yes it might just be a thud that causes no issues, but it's something that doesn't feel "right" then it becomes a concern even to the most confident driver.


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[aeropaul]

That's your take on it, that's completely respectable. Everyone is entitled to their opinion and point of view, makes for healthy forum discussion. I believe you to be truthful and informational in your posts, I honestly value what you have said previously regarding this issue and opinions around the forum. My take on it, yes it might just be a thud that causes no issues, but it's something that doesn't feel "right" then it becomes a concern even to the most confident driver.

Thanks! This is probably the most agreeable disagreement I've had on the internet in a decade.

That said, I do understand your perspective. My years of wrenching on and driving older noisy gearboxes has probably hardened me to these things. To me, it just sounds like a regular RWD manual transmission. I have to admit that this is the first new manual trans car I've ever had (I've had plenty of old/used ones) with zero previous owner miles so I've just chalked it up to part of the car's character since it doesn't correlate with any other failures, in my experience.

It's possible that the synchros will wear in and the thud will go away. It's also possible that it'll continue for the life of the car. I really don't know.

 

[Ruby305GT]

Thanks! This is probably the most agreeable disagreement I've had on the internet in a decade.

That said, I do understand your perspective. My years of wrenching on and driving older noisy gearboxes has probably hardened me to these things. To me, it just sounds like a regular RWD manual transmission. I have to admit that this is the first new manual trans car I've ever had (I've had plenty of old/used ones) with zero previous owner miles so I've just chalked it up to part of the car's character since it doesn't correlate with any other failures, in my experience.

It's possible that the synchros will wear in and the thud will go away. It's also possible that it'll continue for the life of the car. I really don't know.

I hear you man, this is how I feel the forum should be. Although I can't say I've had the same experience with other members, I am glad there are still intelligent people around. Good to have you around, always open for healthy arguments and disagreements, heck that's what makes it fun!

Whatever the issue, or none thereof, I just hope its nothing serious. I plan to keep this car for 100k + and would like to avoid headaches if preventable given they are taken care of accordingly.

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[aeropaul]

I hear you man, this is how I feel the forum should be. Although I can't say I've had the same experience with other members, I am glad there are still intelligent people around. Good to have you around, always open for healthy arguments and disagreements, heck that's what makes it fun!

Thanks man. I appreciate it.

Whatever the issue, or none thereof, I just hope its nothing serious. I plan to keep this car for 100k + and would like to avoid headaches if preventable given they are taken care of accordingly.

Yeah, I hear ya. I plan on keeping mine at least 5-10 years (hopefully 10, but who knows).

 

[minicobra]

You have an american RWD performance car with a manual transmission designed to sell for less than 33k and you're whining about a little synchro feedback... :headbonk::shrug:

It's not a little Thud, It's noticeable to the passengers, it's audible and also you can feel it, almost like running over a small expansion joint in the road.

I've been driving RWD manual trans cars for over 20 years, and my most recent ones, 335i, 370Z, and 2012 GT500 did not do this.

So, I guess manual transmission design and engineering is going backwards then, it's not getting better after all these years, it's getting worse. :headbonk:
So, we have a brand new re-engineered S550, the best Mustang ever, with supposedly and updated MT82 transmission, that's improved in some ways, but gotten worse in others. :shrug:

Oh, and just to mention, I drove my friends 2014 manual SS the other day, and guess what? No thud, hmmmm, oh wait this car is thousands of dollars more, nope, same price. Ford, get the picture here.

 

[minicobra]

Another issue, not related to the thud, is when creeping along in traffice (stop and go)
the transmission seams to shudder a bit. There is probably another thread for this, but just thought I'd mention it. It's very touchy, could possibly be high spots on the flywheel/clutch or just uneven pressure from the spring assembly. IDK, but there was a member on here that had a flywheel failure that left him stranded. I think the thread is called "mt82 failure"

 

[Varekai]

Truthfully I kind of like the thud. It gives the car a more aggressive and powerful feel to it, unlike all the little Hyundai and honda 4 cylinders I've owned in the past. I didn't even think it was a problem. My first time my fiance in the passenger seat heard/felt the thud she freaked out and asked me what that was and I just shrugged it off and told her it's a meatier car, that's the feel of powah, get used to it.

 

[Ruby305GT]

I took delivery of the car and just test drove it a few ago. I also have the thud, but as Paul stated, give the clutch 2-3 seconds before putting in first does the trick. I could care less about the thud, unless it is bound to cause an issue.
If I don't want to think about it, every light or stop, is there a mod which helps or eliminates this? Some people pointed out the white line insert. All i have heard from that is higher NVH and better shifting, nothing on stopping thud.
The thud only happens from neutral, everything else on the Trans shifts buttery smooth.


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[Ruby305GT]

Following up, I feel the thud from 1-2 and sometimes 2-3 but not after. I tried the 2nd gear first then 1st gear and still got a slight this at times. Some other times I get no thud at all. So weird.....


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[McCringleberry]

I have had "clicking into 2nd gear" and other gears problems since day 1 and its been driving me bonkers. I am assuming it is the thud referred to here, it is almost a thud. Anyhow, aside from being all around awesome, removing the clutch assist spring helped with the "clicking" big time. Its much smoother now.

Copied from my response to Clutch Assist Spring thread "It also partially solved my "clicking into 2nd gear" and other sporadic clicking into gear problems. Not 100% gone, but if I do not baby the box and shift like you normally would (not fearing any clicking )it does not click! added bonus. If I try to shift slow and avoid the click it still happens about 50% of the time compared to when it did it with the spring installed. BONUS!"

 

[JustSpeed7]

I have feedback on the shifter like a little resistance and like a thump or click sound when shifting into third is that what you guys are talking about?

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