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Old 08-20-2011, 06:27 PM
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I have an 02 chevy silverado z71 with a 327, will be putting in a cam and other sorts of things down the road but am in need of a tranny right now, should i upgrade to a 4l80e tranny since i have to buy one anyway,? and does it bolt right up to the motor like a 4l60e would?

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Old 08-20-2011, 10:11 PM
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Are you talking an early version of 327 chev engine?

TO swap to the 4L80e , you need a controller for the transmission.

If you are using the OEM computer, you will need to re-wire a few pins in the connector for the 4L80e trans or use an adapter pig tail.

The computer will also need some re-programing.

The yoke for the transmission is larger - different splines from a 4L60e

Drive line will need to be shortened or find a proper length drive line with correct yoke for the 4L80e
Dont worry how old you are... it is the mileage on your body that adds up.
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