Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

shifting at higher RPM

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Old 08-11-2006, 07:17 PM
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Default shifting at higher RPM

I used to have a grinding noise from a stop to start but i havent had any problems in any other gear.not to long ago i think i missed a gear or something because all of a sudden the noise wasnt there anymore.Shortly after that (lately) if i rev her to over 2500 RPM when shifting it wants to stick in that gear and is hard to put into the next gear.and the higher the rpm the harder to shift.im thinking syncro's or a hydrolic problem.

spec3,01 hydrolics no drill mod clutch and hydro syestem has aprox.5-9k miles on it.N/A 335hp 341tq on juice410hp 450tq i spray her often.stock gear

Last edited by 00silver6; 08-11-2006 at 07:30 PM.
Old 08-12-2006, 06:15 PM
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Have the same problem on stock engine and trans.
Shifting 1->2 works well in high rpm but 2->3 and 3->4 is almost imposible above 5000rpm.
This is only a problem for me when I have done a couple of drags, the first and second drag is no problem.

Please help us diagnose this problem.
Old 08-12-2006, 08:54 PM
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my friend told me its possibly has something to do with the shift fork?????
Old 08-12-2006, 09:08 PM
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What I've been told is that if the shift-fork is going bad then the trans is poping out of gear after you put it in....
Old 08-13-2006, 01:07 AM
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ya, i have a 99 t-56 and mine seems like its acting up the same way. i have syncromesh in it and i was wodering if it ate the blocker rings
Old 08-13-2006, 01:42 AM
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my car is doing this too..but only since I put the headers on it.
Old 08-13-2006, 08:12 PM
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i wish i knew what i causing this because now that i put my new clutch in i cant go back to the track because my trans is acting up
Old 08-14-2006, 12:15 PM
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anybody know what is eactly causing this?
Old 08-14-2006, 12:34 PM
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when i daily drive my car it shifts into every gear fine. but when i try to hit 3rd, i think im actually putting it into 1st???? it slows down really fast and it wheel hops really bad, and this has only happend 2 times recently...im wondering if its me being a shitty driver (hasnt ever happend b4 and i race allllll the time)
Old 08-14-2006, 12:48 PM
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Originally Posted by ttmonte
What I've been told is that if the shift-fork is going bad then the trans is poping out of gear after you put it in....
I believe thats the synchros.

The shift fork will indeed make it hard to get out of gear.

I had mine bend one time and it got stuck in 4th gear. It would not come out of gear. I got in the backseat and literally kicked the everloving **** out of my shifter and it stayed in 4th gear.
Old 08-14-2006, 12:52 PM
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Originally Posted by barracuda_440
when i daily drive my car it shifts into every gear fine. but when i try to hit 3rd, i think im actually putting it into 1st???? it slows down really fast and it wheel hops really bad, and this has only happend 2 times recently...im wondering if its me being a shitty driver (hasnt ever happend b4 and i race allllll the time)
oh man, ive never heard of anybody doing that before, that has to kill your drivetrain.


ive been told im a good driver and ive missed 4th gear racing my buddies camaro and i missed 3rd and 4th against my other buddies t/a (lol, i still won both races) and everybody says if im missing gears, something is fucked up with the car. these are the only 2 races ive ever missed a gear in with this car and they have been back to back races

second gear sometimes has a little grindy feel when i nail second and now recently the car doesnt want to go into 3rd or 4th at a high rpm, its like i have to force the hell out of it and i cant do a fast shift, i would like to know whats exactly wrong with it before i take the trans out and take it somewhere
Old 08-14-2006, 04:54 PM
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w02ramair my car is doing this too..but only since I put the headers on it.




how close is your hydro line to your header?
Old 08-14-2006, 05:04 PM
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Originally Posted by 00silver6
w02ramair my car is doing this too..but only since I put the headers on it.




how close is your hydro line to your header?
Do you think it could be a heat problem, cause my hydro-line is only inches from my exhaust.
Old 08-14-2006, 05:23 PM
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im putin a new clutch in, and tranny mount, etc.
Old 08-14-2006, 05:34 PM
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heat can be hell on the slave cylinder ive had problems in the past of that line sitting on my header. but im not sure the effect it has on the system i would think it would put alot a stress on seals etc.im still new to having a t56.all my other camaro's were auto.learning as i go ya know.I think when i get back from deployment im gonna get a rebuild from t56 rebuilds the viper conversion with new clutch and 9".



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