Clunking into gear... How do I fix it?
This is a discussion on Clunking into gear... How do I fix it? within the Manual Transmission forums, part of the Drivetrain category; I've been trying to figure out how to get my 6 speed to shift smoothly without so much concentration. I've ...
06-19-2011, 09:26 PM #1
Clunking into gear... How do I fix it?
I've been trying to figure out how to get my 6 speed to shift smoothly without so much concentration. I've driven a few different manuals in my life, and my Camaro is the most difficult to shift well. Some other members have mentioned the following:
Can synthetic, or some sort of high performance trans fluid help any?
I LOVE driving my car, but I HATE botching a shift when I'm just cruising around town.
06-19-2011, 11:12 PM #2
parts cost between 200-500 depending on what your are doing could even be more!
and fluid probably will not help, you want fluid that is not too slick, always use stock spec fluid!!
Last edited by My00Z28; 06-19-2011 at 11:14 PM.
06-20-2011, 10:36 AM #3
06-20-2011, 10:44 AM #4
Synchro rings and some small stuff could be around 250
06-20-2011, 10:55 AM #5
The notchy shifting is inherent to the T56 by design. If you want smooth shifting at high RPM, the T56 is not for you.
06-20-2011, 11:31 AM #6
06-20-2011, 12:11 PM #7
06-20-2011, 12:17 PM #8
- Join Date
- Jan 2010
- East of Cleveland, Ohio
- 99 WS.6 - Modified
You've got bigger problems than synchros, with the symptoms you're describing. Sounds like shift forks, gears, bearings, or all three. You'd be better off sending the tranny out to get rebuilt/upgraded. I can shoot you a pm of where I had mine done, if you want. I have no problems with mine. Shifts like butter....even at +6000 rpm.
06-20-2011, 12:35 PM #9
I thought my issue might be with an aftermarket clutch (I know that performance clutches tend to be more difficult to drive casually), but others have commented that the T56 has parts that diminish the smoothness of the gear changes (maybe they misinterpreted my explanation?).
To be clear: I'm not concerned with the operation of the stick shift. Only the engagement of successive gears as my foot releases the clutch pedal.
06-20-2011, 01:00 PM #10
I had my transmission sent off to RPM Transmission, which is a reputable company, and got their level IV upgrade on my T56. I haven't had any issues (it's been 2 years now) and soon will be testing it's durability with 540rwhp.
I drive my car pretty spirited , but do have low miles.
I can say that in stock form, my car shifted flawlessly at lower RPM's and still does. I never had any issues with the T56 or stock clutch.
I currently run a Spec Stage 3+ clutch with the built T56 and again, no issues.
What you are describing as a "clunk"...does this happen in all gear changes or just randomly and in one particular gear change?
Just as a FYI - I spent right around 2K to have my T56 removed, shipped, rebuilt, shipped back, and re-installed.
06-20-2011, 01:44 PM #11
Okay... let's see if I can describe it:
You know how if the car has enough forward momentum, you can shift without worry of stalling out (no need to raise the rpm)?
When I'm driving hard, I don't need to baby the clutch pedal. I can just press and release, shifting in between. If I'm just shifting (especially into 2nd, 3rd or 4th) during normal driving, I have to be very careful to release the clutch very slowly or else it just slams into gear (sometimes). I have to work the clutch (even at 15 or 20 mph) the same as if I were idling through a parking lot or a traffic jam (in the case of idling, the engine would stall... what I'm describing requires this same kind of footwork to prevent that slam/clunk when the vehicle is already forwardly mobile).
One thing that seems to be true: If I don't go all the way to the floor, but instead just push the clutch enough to be able to shift, it engages much smoother when I come off the pedal.
Last edited by Naaman; 06-20-2011 at 01:46 PM.
06-20-2011, 09:32 PM #12
Okay, I drove home from work and I counted no less than 35 up shifts... I was unable to duplicate the problem that I'm trying to explain (albeit I wasn't trying to clunk my tranny)... maybe I'm just inconsistent because I suck at standard...?
06-22-2011, 08:04 AM #13
could it be driveline backlash/slop that you are experiencing? i wouldn't be surprised if this is amplified if the clutch is in bad condition/old, or if you work it in/out quickly at the lower engine rpms.
06-22-2011, 08:23 AM #14
I certainly feels that way (clunks feel like they're coming from aft of the driver seat), it feels that way since it's rear-wheel drive...
Though I still have not had an occurrence since my last posting... hmmm.
06-22-2011, 06:12 PM #15
- Join Date
- Apr 2008
- Madison, WI
1999 Formula WS6 M6-sold
- 2001 Silverado Z71
To me it sounds like you are describing a very grippy/grabby clutch. Or some sort of drivetrain clunk, like a bad TA mount, trans mount, motor mount, or excessive clearance in the rear end gears, u-joints, or transmission gears.
06-22-2011, 07:56 PM #16
yeah I was starting to think u-joints myself...
06-22-2011, 09:13 PM #17
Today on my way home, I had an experience as I was coming off the clutch in 1st gear. I let off the clutch just like any other gear, but I got the "juttering" as I released the clutch. I let it out "too fast." I was already going about 7 or 8 mph by the time I fully released the pedal. To me, it seems as if I'm not rolling fast enough for some part of the drive train, though it doesn't feel like it wants to stall...
I guess I'll start with the mounts. I noticed that you mentioned the torque arm. I was thinking about swapping to a tunnel brace mounted torque arm anyway... if that is the problem, might it be the whole problem?
06-22-2011, 09:24 PM #18
I can't really relate. I don't think I've ever shifted my car under 2500RPM in the last 10 years I've owned it.
06-22-2011, 09:30 PM #19
06-22-2011, 09:32 PM #20
Try shifting at a higher RPM and see if it still happens. I'm just curious.
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