Gas vs PSD
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
Postmaster
Joined: Apr 2006
Posts: 3,524
Likes: 2
From: CA Bay Area
Perhaps my statement wasn't completely clear, you're concerned with taking off from a stop up a completely insane incline. While I also take off at an incline, the most I've ever had to face is about a 10%. So for me it, the take off advantage of a manual isn't there. Sure it will be easier to get it rolling, but an auto can do it without an issue. I do want a manual for other reasons though, but probably won't get one because the wife can't drive a manual.
When my differential blow up, I rented 2004 F550. That thing with automatic, hooked up to 14 k trailer would not move up the motel driveway. I had to risk going on reverse to dead end slope to get it to lower incline before it would start moving up. The engine was reving close to 1500 rpm, but no torque to turn the driveshaft.
Hope there were no Chevy owners in the motel
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
When my differential blow up, I rented 2004 F550. That thing with automatic, hooked up to 14 k trailer would not move up the motel driveway. I had to risk going on reverse to dead end slope to get it to lower incline before it would start moving up. The engine was reving close to 1500 rpm, but no torque to turn the driveshaft.
Hope there were no Chevy owners in the motel
Hope there were no Chevy owners in the motel
How steep of a hill are we talking about?
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
With my manual I was pulling out of backyards with about 75% slopes, while having good load of wet wood on my 10 foot flatbed.
When my differential blow up, I rented 2004 F550. That thing with automatic, hooked up to 14 k trailer would not move up the motel driveway. I had to risk going on reverse to dead end slope to get it to lower incline before it would start moving up. The engine was reving close to 1500 rpm, but no torque to turn the driveshaft.
When my differential blow up, I rented 2004 F550. That thing with automatic, hooked up to 14 k trailer would not move up the motel driveway. I had to risk going on reverse to dead end slope to get it to lower incline before it would start moving up. The engine was reving close to 1500 rpm, but no torque to turn the driveshaft.
Posting Guru
Joined: Aug 2008
Posts: 2,313
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From: Sunny, Snowy, CO
Personally, I'm wondering how they paved something that steep. I went up a dirt road to deliver a condensing unit to a church and was wondering how the they get up there in the winter. I thought I was going to twist the driveshaft out getting up there. Floored it, let everything spool, and made it no problem with a small trailer (6X9) I'll get some pics next time I go up there. Coming down was no fun either in something that big.
Laughing Gas
Joined: Mar 2009
Posts: 843
Likes: 6
From: Jessup, PA
A 75% grade on a hill means the elevation changes 75 feet per every 100 feet of distance.
Posting Guru
Joined: Oct 2009
Posts: 2,066
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From: Rogue River, Oregon
I just did the math on that and it comes out to 36.8 degrees. To back anything up that steep of a hill is amazing. I am impressed on that one!
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Posting Guru
Joined: Aug 2008
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From: Sunny, Snowy, CO
http://mw2.google.com/mw-panoramio/p...ium/168370.jpg
Posting Guru
Joined: Oct 2009
Posts: 2,066
Likes: 4
From: Rogue River, Oregon
No thanks. I totally agree that an 18% grade would be brutal hiking in any conditions, but 75% is beyond my comprehension. Heck, I've ridden motocross tracks that weren't that steep!
