tranny flush and filter (and shift kit)?
Joined: May 2006
Posts: 29,661
Likes: 43
From: Sheboygan Wisconsin






Here'* a write up on making a shift kit. https://www.gmforum.com/performance-137/making-installing-shift-kit-4t65-hd-transmission-278802/
Joined: May 2006
Posts: 29,661
Likes: 43
From: Sheboygan Wisconsin






If the torque converter is locking/unlocking, take a look at this. https://www.gmforum.com/electrical-133/tcc-solenoid-switch-284972/ You might need to adjust the TCC solenoid switch.
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Hans
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Oct 31, 2007 11:37 AM






