Originally Posted by Team Readylift

The advantage of a 3" over a 2.4 is purely subjective and up to the consumer to decide. It merely provides for a taller look while in most cases allowing for a 35" tire with a few minor modifications. A block is provided with the kit to re-level as it were, the weight transfer of the vehicle which is beneficial for towing or hauling.

You can run a 35 with a 2.4, but you are going to run into some interference issues that will have to be addressed. The offset of your wheel of choice will have a lot of determining factor. This is why we only recommend a 33" tire with that kit. A 33 will fit with no issues which is what most general consumers prefer.

Originally Posted by Team Readylift

The "material" in our strut kits, like many others is steel.

The 66-5075 strut extension provides on average 2.4" of lift and in most cases make the truck look dead on level. It should also be said that there will be some variance in the end height achieved as for some reason some trucks will sit a little lower than 2.4 and a few others have been actually 2.5".

The 69-5075 kit we are about to make available has a 3" lift strut spacer and test results have shown the lift to be between 3" and 2.75" on different vehicles. With this strut alone the truck sits a little nose high. Just a little bit. A one-inch OEM design iron block (also included with that kit) will bring the back up to where it is just a tick higher than the front, but still looks rather level.

If you want your truck dead on level-looking, then the 2.4 strut spacer or equivilent is what you will probably want.