Silverado trans cooler upgrade?
I have a Silverado with a 5.3 and factory tow package. On our last trip towing the TT in near 100 degree weather, the transmission temp hit slightly over 200 a few times. Recently, while not towing ...
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I have a 2007 2500HD with OEM cooler and a 6.0L. I tow a 6K TT. I have hit 200 in the mountains here in ID. But it generally runs around 160-170 depending on outside temp. You don't want to cool the fluid too much as hyd. fluid operates best when warm it also is able to relieve it self of any moisture that may be in the fluid. It may be you could use a larger engine or lower gear ratios if your trans temps are too high.
