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Old 08-09-2008, 04:53 PM   #631
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hi don...

drop is measured from center to center, or top to top on each segment.

but the haha folks have record of your purchase and can tell u which bar u were sent.

i agree u will need a deeper drop BUT before making the switch consider hooking up once now.

the suspensions are different in the 2 burbs, the 20 inch tires will compress sidewalls LESS,

and knowing how much the rear end will settle is a guess UNLESS u try it once.

what's the tongue weight on the 31? 6-800 lbs?

after connecting and before adding any tension to the spring bars take some measurements....

then tension the bars in an effort to get the trailer level, again make some notes and measurements...

shipping multiple stingers backnforth is a hassle and u might avoid some of this with a trial now.

lastly IF you go from 4 to 8 on the drop, there may be issues with safety chain length,

and don't forget some photos!

cheers
2air'
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Old 08-09-2008, 05:12 PM   #632
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I was at the trailer storage today and when I backed up to the trailer and put in the drop bar it was a big difference. The trailer was level. I would have had to raise it quite a bit. I would have done that but the battery in the trailer must be dead, no power. I am going back over tomorrow and see if I can hook up like you said and measure the difference.

Thanks Don
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Old 08-09-2008, 05:20 PM   #633
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ok good info!

let us know what u learn don.

i assume u have the 1000 lb w/d bars?

with the new burb and a light tongue, very little spring bar FORCE may be needed on the burb side....

so along with the drip bar issue, consider looking at the new lighter (750 lbs) w/d bar option they offer....

while it's well known they will exchange stingers, they have been known to exchange w/d bars too...

i traded 1000s for 1400s under the warranty...

but they asked me not to tell anyone else

whoops!

cheers
2air'
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Old 08-09-2008, 10:46 PM   #634
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Truck scales/new drop

We just finished day 2 of our 13 week road trip. On fuel stop today I weighed the rig. (2008 F250 crew cab 2000 34' Classic) Plus first trip with 4" drop vice the 2" one.

My haha spring jacks have 2 holes showing and the 1400lb spring bars tightened with one mark showing.

Front axle 5240lbs, rear axle 5200lbs and the trailer 7750. My truck front. Axle rated to 5700lbs and the rear 6100lbs and trailer 9800lbs.

Had full fuel, all family members onboard but very little water in the main tank. That's how we normally travel.

Oh yea, on level ground I measured the trailer from the ground to a point in the front and rear and am within a 1/2" of level.

Add my tongue weight to the trailer weight from the scales and I'm still in limits. I still have room for more beer.
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Old 08-11-2008, 09:37 AM   #635
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New drop bar

Here is a picture of the 2008 Suburban with 20" wheels and my current 4" drop bar backed up the A/S. The A/S is level but the floor in the storage area is 1 1/2" higher than the driveway where the Suburban is parked. Here are the measurements based on both the trailer and Suburban parked on the same flat surface.

Suburban ground to bottom of receiver opening 22"

Current 4" drop bar ground to bottom of lower bar 18"

A/S Hensley ground to bottom of opening for drop bar 11 1/2"

I did not try to hook-up, I don't think I could. The 2008 Suburban receiver is built in to the rear frame. It is not a separate receiver attached to the farme as was installed on my 2004 Suburban. Even without the larger tires it appears that it would set higher than the 2004.

I still think the 8" drop is what it will take.

Don

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Old 08-11-2008, 03:24 PM   #636
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...I still think the 8" drop is what it will take...Don
hi don

just eyeballing a zoom of the photo, i think u r right.

do u know what the tongue weight is on your trailer?

does the sub' have auto leveling rear suspension?

once u swap to the 8 take THIS picture (same location) again and post it...

and a show or 2 have the screw jacks are tightened.

thanks again for sharing!

2air'
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Old 08-11-2008, 03:27 PM   #637
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I think he is right too and may even require MORE than 8" to get it level.
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Old 08-11-2008, 03:54 PM   #638
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as just another silly user...

i agree 10 might be needed on these new burbs and some of the new 4x4 trucks...

and they don't offer 10 inch drop bars, covered back in early posts and other threads...

http://www.airforums.com/forums/f464...ver-41577.html

http://www.airforums.com/forums/f464...ion-43261.html

this is a PIA issue for any of us looking at 2009 tow rigs.

with don't trailer IF the tongue is light enough, and not much screw jack tension is needed...

he might be ok.

cheers
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Old 08-11-2008, 03:59 PM   #639
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Quote:
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this is a PIA issue for any of us looking at 2009 tow rigs.
PIA? Please educate me on that one, sir.

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Old 08-11-2008, 04:51 PM   #640
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From what I have read from another post on this subject http://www.airforums.com/forums/f464...ver-41577.html

Hensley is aware of the problem with the 2007 and 2008 GM trucks and Suburban with the receiver in the bumper. But they do not have a solution beyond the 8" drop bar. From what I can determine with the 24" distance between the ground and the top opening to the receiver the 8' Drop bar will bring this down to 16" from the ground to the top of the drop bar that goes in the Hensley. The Hensley hitch with the trailer level is about 14" from the ground to the top of the Hensley opening for the drop bar. So I will be 2" short of level. When hooked up and tightened down the trailer will not be level with the front higher that the rear. That's not good. But if Hensley does not have a solution other than changing the type A ball coupler to a type B ball coupler I would also be concerned with the using a drop receiver if Hensley does not recommend this. Any suggestions. it looks like I may need to consider my hitch options. Any suggestions.
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Old 08-11-2008, 05:04 PM   #641
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don...

when hooked up the truck rear will drop a little...

this might get the trailer to level.

u won't KNOW until u try it.

the haha sway control is FULLY functional with very little or no pressure on the w/d bars...

so IF your tongue is light enough and a scale measurement confirms tv axle loads are appropriate...

u may be fine with very little tension on the spring bars...

or going to the LIGHTER 750lb bars they now offer.

as an experiment i once towed 2000 miles with very little jack/spring bar tension...

and the haha still worked perfectly.

cheer
2air'
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Old 08-12-2008, 10:56 AM   #642
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8" HA drop bar on the way

just ordered the replacement 8" drop bar from HA and I will post comparison pictures after it arrives. Thanks for all of the input.

Don
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Old 08-12-2008, 11:00 AM   #643
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just ordered the replacement 8" drop bar from HA and I will post comparison pictures after it arrives. Thanks for all of the input.

Don

What is the charge for replacing a bar these days?
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Old 08-12-2008, 11:15 AM   #644
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The bar is $200, shipping to me is $40. They credit the $200 when I send it back. So I am out $80 shipping both ways.
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