switch a four speed for a six speed
Posted 15 April 2012 - 12:06 PM
Posted 15 April 2012 - 12:22 PM
Posted 15 April 2012 - 07:54 PM
Edited by music, 15 April 2012 - 07:58 PM.
2008 GMC Sierra CC Z71 4wd | 5.3 / 3.73
Posted 15 April 2012 - 08:43 PM
Yes,anything is possible. It would require a new ECM as the transmission is controlled through it. Would also require a different shifter as the new 6 spd has a manual mode. Would not be worth the cost to do it all. Not sure if the transfer case is the same in both 4/6spds either, so that would be another issue. Overall length, and drivershafts could be an issue too. I dont think you would gain enough MPG's to ofset the cost of doing it.
well put Jeremy !!
I'm here all week ,try the Veal !!
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