Around 260 degrees
208
My 1986 GMC High Sierra 1500 stock transmission is a 700R4. My 1986 GMC High Sierra 1500 stock transmission is a 700R4. it could also be a th 400
The 2008 GMC Sierra-2500HD has a 6-speed automatic.
The 2006 GMC Sierra-2500HD has a 5-speed manual.
The 2014 GMC Sierra-2500HD has a 6-speed automatic.
The 2012 GMC Sierra-2500HD has a 6-speed automatic.
The 2008 GMC Sierra-3500HD has a 6-speed automatic.
The 2007 GMC Sierra-3500HD has a 6-speed automatic.
The 2013 GMC Sierra-2500HD has a 6-speed automatic.
The 2011 GMC Sierra-1500 has a 4-speed automatic.
The 2001 GMC Sierra-2500HD has a 5-speed manual.
The 2011 GMC Sierra-2500HD has a 6-speed automatic.