Do I need an aux transmission cooler?

[GoToGuy]

What's your GCWR ? That's gross combined weight rating?
Combined is loaded truck and trailer? Trailer pitch is to low. Change from drop hitch ball, to level hitch ball, trailer tows level.
Towing over your weight rating is your choice.
Your operating at load capacity, therefore operate like your carrying a big load. Slower acceleration, longer stopping. Drive slower uphill, pulling gonna create more heat, don't push it beyond your wallet size.
It's very specific about pulling loads in D not over drive. That's for transmission longevity. 4L60E isn't built to tow in overdrive. Of course people do it, and a lot of people have poor judgement. Play smart, take it easy, enjoy, no breakdowns.

 

[JustinJ94FSB]

What's your GCWR ? That's gross combined weight rating?
Combined is loaded truck and trailer? Trailer pitch is to low. Change from drop hitch ball, to level hitch ball, trailer tows level.
Towing over your weight rating is your choice.
Your operating at load capacity, therefore operate like your carrying a big load. Slower acceleration, longer stopping. Drive slower uphill, pulling gonna create more heat, don't push it beyond your wallet size.
It's very specific about pulling loads in D not over drive. That's for transmission longevity. 4L60E isn't built to tow in overdrive. Of course people do it, and a lot of people have poor judgement. Play smart, take it easy, enjoy, no breakdowns.

thank you for the wisdom. sound advice right there

 

[murphy455]

I was thinking of doing the same thing I've seen in here that people have done. One installed the factory cooler and lines and everything, and one just upgraded his factory one to a B&M one like a m7b or something. I like both of these options however I'm pretty sure I just bought the last gm genuine aux trans cooler line (from radiator outlet to aux cooler inlet) in existence. And the gm genuine line that goes from cooler back to transmission doesn't exist anymore. So I'm left with a decision of what aftermarket brand to choose. AutoZone has Doesntlast brand, or I can get dorman which I've read many reviews that they leak after a couple years, rock auto sells "sunsong" straight from China. Other people recommend inlinetube or something. I've read that their factory matched bends are not even close so installing them isn't fun. Anyone have a brand recommendation for a cooler line from cooler to trans? Don't want to find out that they failed when I'm stranded in the middle of some mountain pass with a transmission that leaked and ran dry and fried lol.

Thanks

Junkyards are full of them in southern in and ky

 

[Caman96]

Junkyards are full of them in southern in and ky

But the truck may be in a junkyard because the transmission fried, which in turn ruined the cooler. A bit of a crapshoot using one.