What kind of RPM's are you 4.10 guys running at 70-80 mph? How bad did the 4.10's affect your fuel economy?
What kind of RPM's are you 4.10 guys running at 70-80 mph? How bad did the 4.10's affect your fuel economy?
2005 black Yukon XL SLT - traded in for me wife's new Fusion (GM sucks these days)
2002 black Yukon SLT (the skinny sister)
1969 green Pontiac GTO (Layla, AKA the black sheep)
INSTALLS AND MORE.. http://www.ls1truck.com/forums/my-ga...-low-life.html
Sticky/broken gauges? I can help. PM me for details.
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