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Add A Leaf, how much more capacity?

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Old 07-15-2008, 04:25 PM   #1
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Add A Leaf, how much more capacity?

Got the Toytec Add a leaf springs for the rear.

Website of Toytec doesn't say, but they do say it add extra capacity.

How much more capacity do these leaf lifts add?
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Old 07-15-2008, 04:39 PM   #2
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An AAL does not add to the manufactures capacity rating of the vehicle.
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Old 07-15-2008, 11:44 PM   #3
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Quote:
Originally Posted by chris4x4 View Post
An AAL does not add to the manufactures capacity rating of the vehicle.

Everything I've read, including Toytec themselves say the AAL add extra capacity.
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Old 07-16-2008, 04:12 AM   #4
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Quote:
Originally Posted by ERdept View Post
Everything I've read, including Toytec themselves say the AAL add extra capacity.
Chris is right....

Having the Toytec Add-a-leaf does not give you 'permission' to go beyond the manufacturer recommendations of vehicle towing or hauling capacities.

Why? There are many reason why toyota sets those limits and the leaf springs is only one of them. The AXLE itself is another reason ... The axle is what carries everything that you haul or tow. Even though the leaf springs might be able to handle more - but the axle strength would be jeapardized if you go beyond the towing/hauling capabilities of the vehicle.
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Old 07-17-2008, 08:47 PM   #5
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Quote:
Originally Posted by Janster View Post
Chris is right....

Having the Toytec Add-a-leaf does not give you 'permission' to go beyond the manufacturer recommendations of vehicle towing or hauling capacities.

Why? There are many reason why toyota sets those limits and the leaf springs is only one of them. The AXLE itself is another reason ... The axle is what carries everything that you haul or tow. Even though the leaf springs might be able to handle more - but the axle strength would be jeapardized if you go beyond the towing/hauling capabilities of the vehicle.

My intention is only to answer a question. That question being how much more capacity does the add a leaf add.

My research indicated that most sellers do definitely say that they do add capacity.

In fact this is the email response from Toytec.........

"They definitely do add carrying capacity but they are not rated per pounds or designed as an overload spring".

My question, once more is how much do they add?
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Old 07-18-2008, 04:06 AM   #6
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Quote:
Originally Posted by ERdept View Post
My intention is only to answer a question. That question being how much more capacity does the add a leaf add.

My research indicated that most sellers do definitely say that they do add capacity.

In fact this is the email response from Toytec.........

"They definitely do add carrying capacity but they are not rated per pounds or designed as an overload spring".

My question, once more is how much do they add?
If Toytec is telling you *they definately do add carrying capacity*....And I'm not trying to sound rude - Call Toytec and ask them how much they'll add. If they're making claims to it - then they should know the answer.

If they can't tell you - then nobody on this forum can answer you.

The fact of the matter is - you shouldn't go beyond the towing / hauling / carrying capacity set by Toyota.
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Old 07-18-2008, 04:55 AM   #7
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Quote:
Originally Posted by Janster View Post
The axle is what carries everything that you haul or tow.
you're not replacing your axle so you won't get an increase in capacity
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Old 07-18-2008, 05:08 AM   #8
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Vehicle capacity is determined by many things, not just an AAL. Frame, suspension, axel, tires, breaks, transmission, etc.. Simply changeing out one item, does not increase your trucks capacity. If Toytec is claiming that their AAL increases payload capacity, they are opening themselves up for trouble. Toyota (and all other auto makers) engineer their vehicles and give them the rating they have according to how they will perform with said weight being carried/towed.
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Old 07-18-2008, 06:05 AM   #9
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Perhaps Toytec means that it will prevent sagging under load, not necessarily that its adding any capability.
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Old 07-18-2008, 08:08 AM   #10
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OK, thanks all for the answers.
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