Towing Issues??

064runnerguy

New member
I recently bought a new 21ft Glastron boat and want to do something about the rear of my 4runner sagging so much. Does anyone know of someone who had this problem and what solutions are out there. Thanks
 
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I towed my father-in-law's 22' Bayliner the other week without problems. If you want to help the sag issue, look into getting air springs put on in the back.
 
Mike07SE said:
I towed my father-in-law's 22' Bayliner the other week without problems. If you want to help the sag issue, look into getting air springs put on in the back.



also you might want to make sure that there isnt too much tongue weight or weight on the front of your trailer. this will cause a great deal of sag. ive towed boats on a regular basis with my old explorer with a saggy rear end (haha oops) and to compensate it because i was too cheap to invest in new leaf springs, i just flipped my reciever upside down and that leveled out the trailer a lot, which will also make a difference. but ive never had a problem with sagging in my 4runner, but i havent towed much with it anymore because i didnt care to mess up my explorer when towing. let us know what you did to combat the saggyness.
 
One possible solution would be stiffer (higher k-value) springs. But you have to consider that you'd be using these springs loaded AND unloaded. So, new shocks may be advisable, as well.

I had a set of Downey HD springs on the rear of my Gen 2 and had absolutely no sag when towing my 3800 lb Malibu Sunsetter.

Of course, I complementing my springs with a set of Bilstein HD shocks.
 
Can the boat be moved further back on the trailer? This will lessen tounge weight, but might give you tail wag. I tow about 5k with mine and no sag.
 
The easy and right way to adjust the tongue weight is to relocate the axle forward on the trailer. That is the reason the axles are adjustable. If you look under the trailer you will see where (on this size rig) that there will be about of foot of adjustment room. It is amazing what a difference a couple of inches can make. Forward gives you less tongue weight. If you move it to the rear you will have more weight on the tongue. FYI - my 20' Chaparral weighs in at about 4000# and the weight it hardly noticable on my T4R. Also make sure - as others have said - that the trailer is level by having the correct drop / lift at your hitch.
 
Kwik question, what exactly are the '08's towing capacity w/ the V6? I found online that it was like 3500lbs, but the salesman told me 7000
 
sbbamafan said:
The easy and right way to adjust the tongue weight is to relocate the axle forward on the trailer. That is the reason the axles are adjustable. If you look under the trailer you will see where (on this size rig) that there will be about of foot of adjustment room. It is amazing what a difference a couple of inches can make. Forward gives you less tongue weight. If you move it to the rear you will have more weight on the tongue. FYI - my 20' Chaparral weighs in at about 4000# and the weight it hardly noticable on my T4R. Also make sure - as others have said - that the trailer is level by having the correct drop / lift at your hitch.

sbbamafan, I could not agree with you more about redistributing the load and the impact of doing so.

A few weeks ago I decided to purchase a Sherline Scale to check the tongue weight on my enclosed car trailer. Your comment about inches making a BIG DIFFERENCE is right on the money. In my case, when I moved my car 2-3 inches towards the back of the trailer the tongue weight was reduced by 125-150 lbs. I moved a couple of other items to the rear of the trailer which reduced the weight on the tongue even more.

I have a weight distributing hitch with sway control setup on my trailer that I pull with my 4Runner. I do not have any rear end sag issues.
In fact, with the lighter tongue weight (due to relocating the car) I can tell the difference when I hook up the WD & Sway equipment.

I second sbbamafan's recommendation that the original poster look into adjusting the front axle on his trailer. That might have a big, positive impact on the sagging problem.

FYI here is info on the scale I purchased. http://www.sherlinedirect.com/index.cfm?fuseaction=product.display&Product_ID=169
 

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