How Does An Aal Kit Work?

[MJeep]

I know that its another leaf, but with the MJs being SUA, wouldn't it just push the axle up lowering the truck?

[Eagle]

No, because the additional leaf increases the carrying capacity of the spring, causing it to bend less due to the weight of the vehicle. Some AALs have more unloaded arch than the leaves of the stock springs, so they actually force all the veaves to bend (arch) more even before weight is applied.

[Geonovast]

Adding an extra leaf to an SUA vehicle doesn't move the axle... the axle is still sitting directly on top of the main leaf, and all the addition leaves go under the main leaf.

 

When adding an AAL to an SOA vehicle, yes, the thickness of the leaf adds height.

[MJeep]

So an aal with a sua will provide lift?

[mountainman]

So an aal with a sua will provide lift?

 

yup. Like they said, re arching the leaves puts the curve lower down. The axle comes down with that event. lifting the truck.

Get it now?

[Eagle]

So an aal with a sua will provide lift?

An AAL generally produces lift regardless of whether it a SOA or SUA. For example, Rancho sells the same full-length AAL kit for the Comanche and for the Cherokee. It produces about 2-1/2" of lift in a Cherokee, and about 1-1/2" of lift in a Comanche.

 

An AAL is not just a spacer. It's an additional leaf in the spring, and how much lift it produces depends on how strong it is and how much arch it has. When I bought my '88 Comanche it had a Trailmaster 4" lift in it. The rear lift was from a short AAL kit, nothing else.

[Geonovast]

If you're still confused, hopefully this will help.

 

[sinkrun]

While were on the subject is there a difference in Cherokee and Comanche AAL? If yes how can I tell them apart I have a set that was included in some trade stuff and not sure what they are.

[Eagle]

While were on the subject is there a difference in Cherokee and Comanche AAL? If yes how can I tell them apart I have a set that was included in some trade stuff and not sure what they are.

 

That depends on whose add-a-leaf. Rancho, for example, sells only one AAL for both vehicles. There may be some companies who have a special AAL kit just for Comanches, but I don't think I have ever encountered one.

[MJeep]

I get it now, thank you all for clearing that up, for some reason i just couldnt wrap my head around the SUA AAL concept

[Blue88Comanche]

how do i go about adding an AAL? I have my old 4wd leaf packs I was thinking about using to add to Dad's MJ leaf packs.. is it just a matter of unbolt and re-bolt?