T-56 Transmission Gear change couse of 4.10
01-04-2011, 06:57 AM
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Car: 89`RS
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2,72
T-56 Transmission Gear change couse of 4.10
Hi everybody,
I have a 93´ LT1 Trans Am with T-56 and 3.23 rearend.
I did a lot of searching but found nothing helpful, so I hope you can help me, because at transmissioncenter.com I only found info how to swap the drive- and driven gear in a Th700R4...
So I need to know how to change the drive gear in the T-56 (where to open, how to remove the outputshaft, do I have to remove the trans...), what drive- and driven gear do I need and where can I buy them to get the right speed shown for my new 4.10 rearaxle ratio.
Thanks for your help,
Rob
I have a 93´ LT1 Trans Am with T-56 and 3.23 rearend.
I did a lot of searching but found nothing helpful, so I hope you can help me, because at transmissioncenter.com I only found info how to swap the drive- and driven gear in a Th700R4...
So I need to know how to change the drive gear in the T-56 (where to open, how to remove the outputshaft, do I have to remove the trans...), what drive- and driven gear do I need and where can I buy them to get the right speed shown for my new 4.10 rearaxle ratio.
Thanks for your help,
Rob
01-04-2011, 07:14 AM
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Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Re: T-56 Transmission Gear change couse of 4.10
OEM T56's all had electronic VSS sensors. All speedo/gear calibrations have to be done in the ECM tune unless you want to waste money and use a calibration box (dakota, etc.) to do the change electrically.
01-04-2011, 07:20 AM
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Car: 89`RS
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2,72
Re: T-56 Transmission Gear change couse of 4.10
Hello Mike,
thanks for that fast reply!
Can you tell me how to do this "electronic calibration"?
Tranks Rob
thanks for that fast reply!
Can you tell me how to do this "electronic calibration"?
Tranks Rob
01-04-2011, 08:53 AM
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Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Re: T-56 Transmission Gear change couse of 4.10
You have to reprogram the chip in the ECM. The '93 was still EEPROM based. You can read/post in the PROM/ECM forum if you need assistance with it..
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