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Old 11-19-2011, 08:13 AM   #15
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Originally Posted by zigzagguzzi View Post
HUH? All auto trannys downshift! jim
He was talking about the Allison tranny.
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Old 11-19-2011, 08:19 AM   #16
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Hi
Just bought a new 27' flying cloud 7300 GVWR. my 2011 Tahoe with tow and off road package is rated at 8200lbs. The short wheel base is not ideal i know, but after reading some of the posts here it sounds like it should work well enough. I am wondering however about the ideal hitch set up. any one with thoughts or suggestions? thanks
IMO...Your Tahoe is more than capable of towing your FC.
A good quality WD hitch with sway control is absolutely necessary. (I will abstain from pontification as to which is best.)
With the Z71 suspension you will need the lightest WD bars that are capable of transferring the needed weight to the steering axle.
FWIW...I'm not a fan of the HD suspensions for towing. (15yrs @ GM store).
Check the OEM receiver for weld cracks and excess rust regularly.

A level trailer and TV with the proper weight transfer and sway control is the goal.

Bob
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Old 11-19-2011, 08:29 AM   #17
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That was obviously told to you by someone who didn't know squat about either the Hensley or the ProPride. And what is this "unlock"? I've been using my ProPride for two years now, and an estimate of 60,000 miles, have a Diesel truck with the Alison transmission, it downshifts all the time to control the speed, and I don't have a clue of what you are talking about, "unlock".
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I guess he is talking about it locking here at 1:20 minutes.
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Old 11-19-2011, 08:37 AM   #18
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Can't vouch for the Hensley because I've not used one, but the ProPride does not "unlock". And, if you watch the video AND listen to the audio, they explain how the hitch works. It only will turn, or change angle when the tow vehicle first turns....the trailer CANNOT turn behind the TV as in a sway...cannot happen.
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Old 11-19-2011, 08:46 AM   #19
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It sounds like he is describing the Hensley "bump".
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Old 11-19-2011, 08:55 AM   #20
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It sounds like he is describing the Hensley "bump".
Which, when the HAHA is adjusted properly, is non-existant.

Bob
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Old 11-19-2011, 09:07 AM   #21
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Like I said, don't know about the Hensley. The only time I feel anything that could remotely be discribed as a "bump", is when I excellerate too quickly out of a tight turn. Even then, it's not really a bump, but a tug as the trailer straightens out behind the tow when the tow vehicle is pulling hard. Never happens any other time.
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Old 11-19-2011, 09:30 AM   #22
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I also was told not to use a vehicle with a transmision that downshifts to slow you down or has an exhaust brake as it will cause the hensley to unlock, the trailer needs to brake first. It could put you in a dangerous situation if it unlocks at the wrong time I was told.
The Hensley does not "unlock". In fact, the situation whoever told you described is exactly why you might want a Hensley. The tow vehicle slows down before the trailer, causing the trailer to want to pass you. It cannot do that with a Hensley or ProPride.
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Old 11-19-2011, 09:56 AM   #23
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The Allison tranny does not downshift? How do you get it in first? jim
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Old 11-19-2011, 11:14 AM   #24
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The Allison tranny does not downshift? How do you get it in first? jim
We are talking about the automatic grade brake feature in that tranny.
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Old 11-19-2011, 01:38 PM   #25
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okay,jim
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Old 11-19-2011, 04:42 PM   #26
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The Allison tranny does not downshift? How do you get it in first? jim
The Allison transmission does a great job of downshifting automatically, if it's in the tow/haul mode. All you have to do is be going down hill, step on the brake, and it downshifts. If you step on the brake again, if it can without sending the engine RPM too high, it will downshift automatically to the next lower gear.

It's probably not as good as an actual engine brake, but it works pretty good.
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Old 11-20-2011, 09:17 AM   #27
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i have had my hensley for 5 plus yrs.the only time i ever got a slight bump was while slowing down with the truck in a turn comming up to a stop sign.never felt anything on the road when the truck and trailer are straight.
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Old 11-20-2011, 11:11 AM   #28
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Just to be clear... IF you were using a Hensley/Pro... and didn't have any trailer brakes... if you were in a slight turn and hit the TV brakes, would the trailer/hitch linkage not allow the trailer to continue to pivot? I'm not talking about sway... I'm talking about the trailer being able to continue to move forward as much as the linkage allows it to pivot...

This wouldn't be any different than loosing trailer brakes on a regular ball... but I'm wondering if the virtual pivot point on a Hensley would exaggerate this problem... which is where the idea of not having a tranny or engine brake working without trailer brakes comes from...

???
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