Transmissions and Drivetrain Need help with your trans? Problems with your axle?

T56 Wont go into gear with car off-

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Old 03-18-2014, 09:14 AM
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Car: 87 IROC
Engine: LT1
Transmission: T56
Axle/Gears: LS1 10bolt w/ 3.73
T56 Wont go into gear with car off-

So the short story is in the title- The long story, I bought this T56 from a 95 z28 last fall, it was used, said there was about 110k on it, but the price was right. So over the last few months I have pieced together everything else i needed, hydraulics from ebay, clutch from here, etc etc. I ended up with a 500 mile used clutch oriellys house brand, an OEM flywheel that had just been resurfaced, a Spohn cross member, and 4th gen hyrdaulics. I modified the master cylinder rod to account for using the third gen pedals., oh Pro 5.0 t56 shifter.

So the install went as expected-longer than i had planned on, but relatively smoothly. When i first turned the car on, clutch in, started the car, ran it for a bit, worked the clutch and heard a loud Pop. The clutch went to the floor. But this is the only time this has happened. Now working the clutch releases the clutch. After i installed the driveshaft, i had the back end up, and ran it through all of the gears made sure the speedo worked (thanks Alloy!)

However now, just a few days later, it is impossible to shift the car into some gears with car off and the wheels down. It started just with 6th, now its 1-2-3 R that i am having issues with. I even put the old shifter on just to make sure it wasnt the shifter. But by that time it was late and I didnt have an extra set of hands to start inspecting.

So do you guys have any recommendations? And ideas? Anything would be appreciated. Ill probably put the rear end back in the air tonight and see if it will go into gear.

Oh- when i bought it, it did row every gear, and all of them seemed fine. i was using the stock shifter and didnt bolt it down.
Old 03-18-2014, 11:59 AM
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Re: T56 Wont go into gear with car off-

Originally Posted by tglennon11
However now, just a few days later, it is impossible to shift the car into some gears with car off and the wheels down.
This is normal. Syncro's require rotation in order to properly operate. Note that it isn't good for the transmission to shift gears with the engine off.

As long as it continues to shift OK while driving you are good to go.

RBob.
Old 03-18-2014, 12:05 PM
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Car: 87 IROC
Engine: LT1
Transmission: T56
Axle/Gears: LS1 10bolt w/ 3.73
Re: T56 Wont go into gear with car off-

whew- good to know, thanks RBob
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