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Old 09-12-2016, 05:57 AM   #11
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Thanks all. I am feeling more confident about it. In my research I found some info about adding an exhaust brake. Are these very common? I did not even know that such a thing existed for a consumer vehicle. Always associated them with big rigs.


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Old 09-12-2016, 08:45 AM   #12
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That's an expensive mod on an older truck. If you're going to keep that beast for several years and tow mountains with it then yes it's a worthwhile investment since you do not have tow/haul mode. Descends is where you will like it. I have a stock one on my Ram and love it. Saves the brakes!
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Old 09-12-2016, 09:45 AM   #13
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Locking out the OD ensures the trans won't keep bouncing back and forth between OD and whatever is your next lower gear. If you're on flat ground, it's fine to use OD. But not in the hills. Not sure if it works on your year, but on most transmissions with OD lockout, depressing that button also directs the trans to use a different shifting map which keeps the trans from upshifting until a higher rpm is achieved, ensuring the clutches are fully locked in most of the time. That is important when towing. The only thing you really have to remember is to keep revs above about 1800-2000 rpm when climbing, by remaining in whatever gear allows you to maintain that rpm. Your trans will likely do that for you, but it doesn't hurt to check it, especially on your first trip with that particular load.
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Old 09-12-2016, 09:46 AM   #14
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PS: The 7.3 was/is a very solid diesel platform for towing pretty big loads. You should be fine.
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Old 09-12-2016, 12:26 PM   #15
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I agree. That's why I was a little confused by the guy who commented "I don't think you should do it. You don't have enough truck". Perhaps that was sarcasm that just got lost in cyberspace :-)


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Old 09-12-2016, 01:11 PM   #16
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You should have no problem with OD off as others have said. The more important thing is that the truck is in otherwise good working order. I would not add an exhaust brake to an 01 truck unless I was going to keep it for quite a few years, and if you are going to keep it you had better know how to turn wrenches.
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Old 09-12-2016, 02:06 PM   #17
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Roger that. I understand. And yes I know how to turn wrenches, and don't mind doing it. :-) I just hope I don't go broke on parts :-)


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Old 09-12-2016, 03:27 PM   #18
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Does the 7.3 come with the 4R100 (4 speed)? If so, don't turn OD off. I never turn it off for my towing, and it has never come close to overheating. Just monitor how much it is shifting in and out of OD. If it's not shifting too often, the trans won't get too hot. That is a pretty easy tow trip, as far as hills go. I've done MI TO FL via 75.
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Old 09-12-2016, 05:37 PM   #19
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I towed our 338 rets through the mountains of tenn and ky with my 1995 ford f350 with the 7.3 and a 5 speed manual and it made it over fine but just slower up the steep inclines because I couldn't keep the turbo boost up in 5th gear so it was 45 to 50 mph in 4th... it never overheated and did the climb fine but I would believe yours would do better than my old one because in 2001 they had intercooler for turbo and more horsepower and torque and the automatic had more towing capacity than the manual
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Old 09-12-2016, 06:44 PM   #20
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You should have no issues with that TV. I am on a 6-7000 mile trip from NM to WA to IL to Mo and home towing just over 11k with a F250 7.3. I do not lock out over drive unless the trans starts searching (in & out of OD) In the mountains keep your speed down on the down hills, out of OD, & manual down shift to 3rd and let the engine hold the trailer weight. Speed picks up get on brakes firmly to bleed speed off and release. Riding the brakes will cause over heating and no brakes. Watch the big rigs as they break on and off. Just don't hurry especially down hill.
Old Trucker saying: Lots of times too slow, only once too fast.
Have a safe trip!
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