Well Sh!t ......

OK the o2 sensor is bad, easy fix. I found the pigtail to be smashed in between the starter and block, my mistake during the header install.

Car is running great, T56 input shaft said NO MORE!!!!! :banghead: Thank god for AAA.
Did the input shaft take out the diff too? I'd go ahead and upgrade both to a 6060. It's like butter compared any RPM built T56. I have a level 6 in my current car and would take my old stock 6060 over it any day. Good luck! Been there a few times.
diff seems to be ok (for now until i pull it apart). with the car running and the clutch engaged i can go though the gears. i can also hear the clutch working and the driveshaft turning (poly couplers). so the problem lies either before or in the trans. i didnt hear any grinding, clunking of feal any jerkyness and nothing locked up. it just snapped and then freewheel. i heard the snap.
Last edited by v8sten; Jul 25, 2015 at 08:49 AM.
The smaller or narrow syncros make it worse to shift and less durable..
You can beat the dog **** out of a t56 for a while before you have any issues..
I have a tr6060 that I keep as a spare.
Hated it enough to put another t56 in my car...
If anyone has issues shifting a t56 it is likely the shifter assembly and not the actual trans..
Can't believe you broke that sucker..
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If it broke an axle, the trans will still shift fine and usually one drive wheel will turn if it's in the air, however it will not move the car. Posi needs load against both tires to apply the power. If one axle breaks, the other one will NOT get the power...it will only get enough power slipping thru the clutch pack to turn the tire in the air.
Same thing for the input and output shafts, the Trans will still shift fine, just no power coming in or going out the Trans.
If you hear driveshaft spinning in the TT, you know it's not the front input shaft or coupler.. it could be the rear coupler or input shaft in the trans but...
I'm betting axle.
Were you at the track when it broke?
I broke my "built" T56 twice. The second time it took out the 9310 G Force main shaft...but I think the diff failure is what broke the shaft, not the other way around.
TR6060s are leaps and bounds better then an upgraded T56. Bigger shafts, bigger gear sets, better cases, gear set oiling... Etc etc.
My T56 never shifted that great in my Vette.. Couldn't even think about power shifting it. However my T56 in my old Trans Am you could power shift effortlessly at 550 rwhp and never miss a beat. I think it's the goofy shifter and rod arrangements in the vette's torque tube that make them shift so notchy/clunky.
If it broke an axle, the trans will still shift fine and usually one drive wheel will turn if it's in the air, however it will not move the car. Posi needs load against both tires to apply the power. If one axle breaks, the other one will NOT get the power...it will only get enough power slipping thru the clutch pack to turn the tire in the air.
Same thing for the input and output shafts, the Trans will still shift fine, just no power coming in or going out the Trans.
If you hear driveshaft spinning in the TT, you know it's not the front input shaft or coupler.. it could be the rear coupler or input shaft in the trans but...
I'm betting axle.
Were you at the track when it broke?
I broke my "built" T56 twice. The second time it took out the 9310 G Force main shaft...but I think the diff failure is what broke the shaft, not the other way around.
TR6060s are leaps and bounds better then an upgraded T56. Bigger shafts, bigger gear sets, better cases, gear set oiling... Etc etc.
My T56 never shifted that great in my Vette.. Couldn't even think about power shifting it. However my T56 in my old Trans Am you could power shift effortlessly at 550 rwhp and never miss a beat. I think it's the goofy shifter and rod arrangements in the vette's torque tube that make them shift so notchy/clunky.
The z06 t56 has a fluid pump and front mounted cooler.
The gear sets and case are different. But if you're not breaking gear sets or cases what good does it do??
Like I said above, unless you are over powering the t56 hard parts. It's not worth the up grade.
And it's a more common piece.
The z06 t56 was only used in 06-07
Compared to 08-14 for a tr6060. Not to mention they used the same trans in grand sports and z06 and you also have the zr1 option too.
They are just more plentiful and easier to get a hold of.
If it broke an axle, the trans will still shift fine and usually one drive wheel will turn if it's in the air, however it will not move the car. Posi needs load against both tires to apply the power. If one axle breaks, the other one will NOT get the power...it will only get enough power slipping thru the clutch pack to turn the tire in the air.
Same thing for the input and output shafts, the Trans will still shift fine, just no power coming in or going out the Trans.
If you hear driveshaft spinning in the TT, you know it's not the front input shaft or coupler.. it could be the rear coupler or input shaft in the trans but...
I'm betting axle.
Were you at the track when it broke?
I broke my "built" T56 twice. The second time it took out the 9310 G Force main shaft...but I think the diff failure is what broke the shaft, not the other way around.
TR6060s are leaps and bounds better then an upgraded T56. Bigger shafts, bigger gear sets, better cases, gear set oiling... Etc etc.
My T56 never shifted that great in my Vette.. Couldn't even think about power shifting it. However my T56 in my old Trans Am you could power shift effortlessly at 550 rwhp and never miss a beat. I think it's the goofy shifter and rod arrangements in the vette's torque tube that make them shift so notchy/clunky.
Yes there are differences but not enough to make it worth the trouble..
The 6060 is a stronger, better shifting transmission.







....... i guess he didnt want to go fast