PDA

View Full Version : Towing a 1986 MC with a 2007 Suburban - Question


Tom Wortham
05-31-2007, 03:59 PM
If you own a 2007 Suburban and tried to tow your boat with the same drop-hitch from your older Suburban.... you know the question.:confused: What length drop down hitch is needed to tow a single axel 1986 trailer/boat? I bought a 7 3/4 drop hitch and think it will work. A buddy of mine has a 5 3/4 drop pulling his 2006 X-9 and said he wished he had another 1 or so drop.
A 2 inch drop on my 2004 Suburban was perfect for my 86 MC trailer. Thanks.

TMCNo1
05-31-2007, 04:08 PM
We don't have the vehicles to do the comparison for you, you do, or there should be one on a Chev./GMC dealership lot near you. There may be a difference between a 2WD and a 4WD, something you didn't specify.
On a flat, level surface, measure from the ground up to the top of the hitch hole on the 2007 Suburban, where the ball mount slides into then deduct 18" and that should be close.

Tom Wortham
05-31-2007, 04:12 PM
We don't have the vehicles to do the comparison for you, you do!
On a flat, level surface, measure from the ground up to the top of the hitch hole where the ball mount slides into then deduct 18" and that should be close.

Thanks. I'll use the 18" rule. Just wanted to ask the question to see if anyone else DOES have that truck/boat combination and has already been through this effort. Will post my results so others will know. Regards.

BrianM
05-31-2007, 04:23 PM
The new 2007 Suburban/Avalanche has the exact same ride height either 2wd or 4wd. The hitches on the new GMT-900 platform are lower than on previous models. I am actually using a slight (1/2") rise towing my '97 Prostar with the Avalanche (On my previous '03 Sierra I used a 2" drop). This makes the trailer perfectly level. Unless you are running a lift a 5" or 7" drop is going to be WAY too much. The older trailers ride a little lower but not that much I would say the standard 2" drop at the most.

TMCNo1
05-31-2007, 04:27 PM
Thanks. I'll use the 18" rule. Just wanted to ask the question to see if anyone else DOES have that truck/boat combination and has already been through this effort. Will post my results so others will know. Regards.


After I replied, it came to me that was maybe the direction you were headed and I feared you may have took it wrong. Maybe someone with a '07 will respond and please do reply with your findings, thanks, Harold.

sand2snow22
05-31-2007, 04:31 PM
Isn't the 07 Suburban cursed :mad: Well, at least for one Team Talk owner........

Tom Wortham
05-31-2007, 05:07 PM
Went and measured the truck. Distance from the top insert of the Class III opening to the ground is 23 3/4 inches. That minus 18 inches means that I would need a 5 3/4 inch drop on the toung.
A few years back I had a prop guard added to my 86 trailer and I need all the room I can back there the 7 3/4 might be a little too much for most 86 or older models (towing with a 2007 Suburban). 5 3/4 or 6 3/4 drop would be my recommendation for you. I'll take a few photos once I get it hooked up using the 7 3/4 inch drop. 18 inch tip is a good one, thanks Harold.

BrianM
05-31-2007, 05:21 PM
Went and measured the truck. Distance from the top insert of the Class III opening to the ground is 23 3/4 inches.

What model Suburban, tires, and what suspension? Just went out and measured. My LTZ Avalanche with the Autoride suspension and factory 20s measure 17 3/4" to the top of the Class III opening.

Tom Wortham
05-31-2007, 05:36 PM
It's a LTZ 2007 Suburban. 5 spoke 20" wheels. All stock, no lift.http://www.chevrolet.com/suburban/photogallery/

BrianM
05-31-2007, 06:33 PM
You know what I just remembered is that the Suburbans have the hitch that goes through a cutout in the bumper now. My Avalanche uses a defferent bumper and the hitch is mounted below it.

I am still thinking that that is going to be too much of a drop.

Tom Wortham
05-31-2007, 06:41 PM
Brian, You are correct. It is cut out of the bumper. It's going to be close. Not sure they make a 6 3/4 drop. Won't be able to take photos for 2 weeks. Thank you for everyone's input. I'll be back (with photos). As I mentioned, with the prop guard I would rather have it lean a little towards the front than the back. However, in a perfect world it needs to be level.

wgwollet
05-31-2007, 07:47 PM
Wow, you guys buying these new Suburban, how do ya justifty the gas those thing use? I know they can get 20mpg, but $3.59/gallon here.

Tom Wortham
06-01-2007, 10:44 AM
Wow, you guys buying these new Suburban, how do ya justifty the gas those thing use? I know they can get 20mpg, but $3.59/gallon here.

I put less than 9,000 miles a year on a car. Gas is still below $3.00 for low grade here in Texas. With the combiniation of the two, I want my wife and kids in a big, protected vehicle. It's a Texas thing. :D

Tom Wortham
06-12-2007, 05:52 PM
Well as you guys told me. The 7 3/4" drop was too much. I think the 5 3/4" will be perfect. Could probably go 6". But I couldn't find one that was an even 6' drop.

Tom Wortham
06-12-2007, 05:52 PM
Isn't the 07 Suburban cursed :mad: Well, at least for one Team Talk owner........

What have you heard (about the curse?)

BrianM
06-13-2007, 09:27 AM
What have you heard (about the curse?)
Ask PendO his has been wrecked twice now. Something like a total of $20k in damage.

Tom Wortham
06-15-2007, 05:17 PM
Ask PendO his has been wrecked twice now. Something like a total of $20k in damage.

Ouch. Knock on my teak... so far so safe.

Back to the thread... regarding drop down hitches. I have only seen a 5 1/4 and a 5 3/4, then it when to a 7 3/4 (which was too much).
I purshased a 5 3/4 and think it will work. a 6 or 6 1/4 would probably be perfect. Do they make then in these sizes (6 and 6 1/4 drops?).

BrianM
06-15-2007, 05:49 PM
I don't think 1/4" - 1/2" is going to make much difference one way or the other. But here is a 6" drop if you want to spend another $31.95 plus shipping.
http://www.jiffyhitch.net//store/product_info.php?products_id=715&osCsid=302070308efefd75d136b665e8246a4d