t56 people inside
Junior Member
Joined: Sep 2000
Posts: 91
Likes: 0
From: Tampa, FL USA
Car: 91 Camaro Z28
Engine: 5.7 TPI
Transmission: T-56
My T56 also whines really loud......I am thinking its a little more beat up than the guy that sold it to me lead me to believe.
My biggest noise though is the banging noise coming from my Spohn crossmember and torque arm hitting the floor over bumps.
My biggest noise though is the banging noise coming from my Spohn crossmember and torque arm hitting the floor over bumps.
Junior Member
Joined: Feb 2003
Posts: 55
Likes: 0
From: Calgary AB, Canada
Car: 88' Iroc
Engine: 383
Transmission: T56
Mine is extremly quiet it is the most quiet manual tranny I have ever heard, the one in my bros 95 z28 is the same way if it ias whining I think you might have a problem.
My T56 was quiet all the time. If you have a whine either something is wrong with the tranny or you might have a bearing of some type going out. Does it whine all the time? With clutch depressed or out? Any specifics?
i was informed that when you go to an aftermarket shifter.....it translates more noise there fore the loud whine...the trans i have shifts great and gives me no trouble...my friends NEW bullit mustang started to whine loud after a shifter change as well as my friends 93 z...so i am guessing its just that...the solid base of the shifter and such
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Senior Member
Joined: Apr 2003
Posts: 541
Likes: 2
From: Mill Creek, Washington
Car: 1983 Trans Am
Engine: N/A
Transmission: N/A
Are you sure the whining is coming from the tranmission?
I have heard about the rear end whining extremely loud once a t-56 gets bolted up.
I have heard about the rear end whining extremely loud once a t-56 gets bolted up.
mine only wines when im downshifting into 1st slowing down. but thats normal with a tranny spinning that fast. (i dont let go of the clutch but the internals of the tranny still spin fast.) other then that my T-56 is silent. except when im in neutral and idling. then its the noisest dang thing iv ever heard!! i swear if im idling in neutral with the clutch engaged, it sounds like i have really bad bottom end knock, but its coming from the tranny, and as soon as i push the clutch it stops..
Originally posted by breathment
mine only wines when im downshifting into 1st slowing down. but thats normal with a tranny spinning that fast. (i dont let go of the clutch but the internals of the tranny still spin fast.) other then that my T-56 is silent. except when im in neutral and idling. then its the noisest dang thing iv ever heard!! i swear if im idling in neutral with the clutch engaged, it sounds like i have really bad bottom end knock, but its coming from the tranny, and as soon as i push the clutch it stops..
mine only wines when im downshifting into 1st slowing down. but thats normal with a tranny spinning that fast. (i dont let go of the clutch but the internals of the tranny still spin fast.) other then that my T-56 is silent. except when im in neutral and idling. then its the noisest dang thing iv ever heard!! i swear if im idling in neutral with the clutch engaged, it sounds like i have really bad bottom end knock, but its coming from the tranny, and as soon as i push the clutch it stops..
Mark
Same here, it went away for a while when I swapped in a McLeod disk and GM LT4 pressure plate but eventually the idle rattle/knock returned.
Just a nuisance, not a problem.
Just a nuisance, not a problem.
Supreme Member
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
I have the idle/clutch out/in neutral rattle but other than that mine is quiet. I have a Pro5.0 shifter......
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iTrader: (1)
Joined: Feb 2002
Posts: 1,081
Likes: 3
From: Florida
Car: 1992 Camaro RS
Engine: Yet another 350 TPI
Transmission: Borg Warner 6 spd
Axle/Gears: 3.73
When I first put in my T56, it would whine/rattle really bad at any speed, and at any rpm with or without the clutch engaged. It would be louder with rpm, but at idle it was still there. It ended up being a bad throwout bearing.
After a new $100 throwout bearing, you can just barely hear a faint whine when I have the A/C off and the radio off. Otherwise, you can't tell.
After a new $100 throwout bearing, you can just barely hear a faint whine when I have the A/C off and the radio off. Otherwise, you can't tell.
Senior Member
Joined: Jun 2000
Posts: 998
Likes: 0
From: Tuscaloosa, AL
Car: 91Z, 91RS, '84 Jimmy
Engine: L98, 355, L98
Transmission: 700R, T56, 700R4
My throwout bearing makes a little noise in neutral with the clutch engaged also. It's just the way it's set up, with the fingers surrounding the bearing....the shift fork vibrates a little and the bearing contacts the clutch fingers.
I ran into one guy who had a really nasty whine while driving....but it went quiet in 4th. Turns out somebody had rebuilt it and not set the endplay on the input shaft correctly...there was too much slack in the bearing that rides in the back of the input shaft. It went away in 4th gear because 4th isn't an actual gear...it's a direct connection between the input and output shafts, so that bearing wasn't rotating.
So if the whine goes away in 4th you have internal problems.
I ran into one guy who had a really nasty whine while driving....but it went quiet in 4th. Turns out somebody had rebuilt it and not set the endplay on the input shaft correctly...there was too much slack in the bearing that rides in the back of the input shaft. It went away in 4th gear because 4th isn't an actual gear...it's a direct connection between the input and output shafts, so that bearing wasn't rotating.
So if the whine goes away in 4th you have internal problems.
Member
Joined: Jul 2003
Posts: 130
Likes: 0
From: Spokane,Wa
Car: 84 T/A, 87 iroc-z, 86 turbo z-28.
Engine: 5.7, 5.7, 6.6
Transmission: t-5, 700r4,manual shift th350
Axle/Gears: 3.73, 3.52, 3.23
T-56 question
can the T-56 bolt up to a 72 350 sm? i can get the mount and drive line mod.
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