UR opinion, extra transmission cooler..
I pulled the grill on my (5.3 Liter, 4L60e transmission) Suburban to install an oil cooler and there's a factory oil cooler mounted behind the grill already. I traced the line from the return side of...
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When towing a 7200# GVWR TT with a 2005 Suburban with the 5.3/4L60E/3.42 combo I didn't ever see any alarming tranny temps.
I only towed in drive (3rd). On mine, Tow Haul prevented shifting into OD under 60mph and increased that under load. The torque converter also locked up in drive on mine.
I only towed in drive (3rd). On mine, Tow Haul prevented shifting into OD under 60mph and increased that under load. The torque converter also locked up in drive on mine.
