GM 6.0 gear searching.....

ericpatt wrote:
Thanks everyone!

Correct. It has the 3.73 and i do use the tow/haul mode. Just double checking cause 3k seemed high as this was the first "big" thing I've towed outside of boats and snowmobiles.

Took a trip last year to Smokey Mountains. Got really nervous when trans started heating up through the hills(~200). Have made it a practice to have it flushed and new filter before long trips. Live in Wisconsin. Heading to Kentucky this spring break.

Had heard that GM was going to put diesels back in surburbans. Might be happening for 2019?? Don't know if i can stomach $80-90k though.....

Chuckling at the part in red.

It's a 3/4-ton truck designed for towing, not a fragile half-ton. Lock it in 4th, and let 'er rip. The 6.0 loves to rev.

This is from our last trip out West, climbing Powder River Pass, elevation 9666 feet, with a GCW right around 16,000 lbs.



And on the way down, I was spinning the engine so fast for engine braking, that I actually spun the A/C belt off the pulley without it breaking. When I got down, I pulled over, popped the hood, and saw the belt hanging from the crank pulley. I'd thought I'd killed the compressor by spinning it so fast.

I also saw similar trans temps the last time we were in Colorado, running it through the "Ike Gauntlet," aka the Eisenhower Tunnel, elevation 11,158 feet.

And, BTW, Dex6 can handle some pretty high temperatures. The "trans hot, idle engine" message/warning only comes on at 265°.

My truck has 175k miles, is all original, I beat the **** out of it, and I've spent a total of $23 in repairs over the last 4 years, to replace a bad purge valve solenoid.

ETA: And for the record, the word I used was c rap, not some really bad swear word. :)