hey on my 06 dmax im gonna get a leveling kit so i can clear 305's . on all my other trucks i have just ran the torsion bar keys, and either shock extensions or longer shocks, i have seen the cognito levelings kits around, and i live the bolt in upper ball joint idea, what the advantage of running the cogito upper control arm kits compared to keys besides the ball, i have read thatit helps on full droop so it dont bottom out on the upper control arm, but if i dont crank it that high what is the benefits. also i seen there are a few dif kits, just a leveling kit, and a 2-3 lift, im guessing the front would sit to high i would need to run a add a leaf or something to level it out, i also wanna lift it with either a cognito or a fabtech kit, can i use either of the kits with the lift. thanks

http://www.norcaltruck.com/cognito-2-3.html

Read here.

cognito will ride better and cause less wear on front end parts. more healthy and better way to level overall.

http://www.norcaltruck.com/cognito-2-3.html

Read here.


alright this answered pretty much all my question except what kit i should use, i guess to level it out i need the 2-3" kit not the upper control arm kit right. and on the site it says a 285 tire is recommended, thats whats im running now, is anyone running a 305 on a 10" wide rim. thanks

alright this answered pretty much all my question except what kit i should use, i guess to level it out i need the 2-3" kit not the upper control arm kit right. and on the site it says a 285 tire is recommended, thats whats im running now, is anyone running a 305 on a 10" wide rim. thanks
At full turn you may rub on the rear of the front fender if you hit a good bump,otherwise you should be fine..Maybe you would want to trim the corner of the front bumper,these trucks all seem to be differant though.

Need to know the offset of the wheel to tell you how bad they won't fit. Also need to know the rest of the tire specs so we can tell how tall they are, which is as important as how wide they are.

I'm running 285/70/17's on a 8.5" wide wheels with +18mm of offset. At full lock I have less 1/4" of clearance and if I articulate the suspension at all at full lock the edge of the tread will just breathe on the inner fender plastic. I've got the inner fender tied back.....to gain any more clearance I would have to do some trimming on metal.


So you want to run a wheel that probably sticks out at least 1.5" further and most likely sticks out a full 2" further........not going to happen even with 265 that's only 31" tall.


Also any of the "kits" that are less than 4" are just a leveling kit. Don't think anyone makes a true lift that drops the center diff and moves the A-arms that doesn't at least lift the truck 4". Depending on what wheels you want to run and how tall the tire is you will need either a true 4" or 6" lift.....which cost more than a grand.

Need to know the offset of the wheel to tell you how bad they won't fit. Also need to know the rest of the tire specs so we can tell how tall they are, which is as important as how wide they are.

I'm running 285/70/17's on a 8.5" wide wheels with +18mm of offset. At full lock I have less 1/4" of clearance and if I articulate the suspension at all at full lock the edge of the tread will just breathe on the inner fender plastic. I've got the inner fender tied back.....to gain any more clearance I would have to do some trimming on metal.


So you want to run a wheel that probably sticks out at least 1.5" further and most likely sticks out a full 2" further........not going to happen even with 265 that's only 31" tall.


Also any of the "kits" that are less than 4" are just a leveling kit. Don't think anyone makes a true lift that drops the center diff and moves the A-arms that doesn't at least lift the truck 4". Depending on what wheels you want to run and how tall the tire is you will need either a true 4" or 6" lift.....which cost more than a grand.

i know of a few people running 305-70r16 on 16x10 wheel and they didnt rub, he has to trim the front lower valance. i got 285-70 i think on 16 inch rim with them barely cranked and there not even that close to rubbing.

alright this answered pretty much all my question except what kit i should use, i guess to level it out i need the 2-3" kit not the upper control arm kit right. and on the site it says a 285 tire is recommended, thats whats im running now, is anyone running a 305 on a 10" wide rim. thanks

There are a few different levels of kits. Each kit contains the upper control arms and you will need them. It just depends on how much you want to spend.

A 305/70/16 is 32.8" tall, which helps in the clearance department. Most 305's are 75 series which would have been another 1" taller.

Your 285's you have now are only 31.7" tall which is why they aren't even close to hitting. Also if you are running the stock rim they are tucked in really nice and that makes ALL the difference. Lets just say you stuck with your tires you have now, but swapped to a 10" wheel with the same backspacing, meaning that the inside lip of the wheel stayed where it's at.

You would need 3.5" of clearance to what you have now........let that sink in a minute. Can you get a 2x4 between your tire and fender? I doubt it. That's what I mean that the wheel width and offset are CRITICAL to clearance.

You very well could clear a 305/70/16 on a 16x8" wheel that has +18mm of offset. Probably with just minor trimming.

You won't clear those tires on a 10" wide rim with -25mm of offset without a 6" lift. It just makes that big of a difference.

Those are the two extremes.

So again, if you can give us the exact wheel size, offset, and tire size you want to run along with what you have on there right now, I can run the numbers and tell you how much room you need from your existing wheel and tire combo to clear the new set. Then you're just 5 minutes and a tape measure away from knowing for sure.

i know of a few people running 305-70r16 on 16x10 wheel and they didnt rub, he has to trim the front lower valance. i got 285-70 i think on 16 inch rim with them barely cranked and there not even that close to rubbing.


Here are some of the notes I state on my site for the best results when using this kit. There will always be people pushing the limits and that can be done but you would have to work with the cons that follow on rubbing or ride quality. Follow these easy notes and you will be very happy with the product:

Note:

Lift "Keys" are not always required but recommended for truck years 2001-2005.
Cognito Leveling kit is designed to level a HD truck, but if you would like to add a block to the rear to regain a "rake" stance you can. We recommend between a 1"-1.5" to retain a factory looking stance or "rake".
Over-Cranking the suspension will affect ride quality and is not recommended.
The distance between the upper A-Arm and the metal bump stop should be no less than 3/4".
Recommended max tire size for BEST results - 33” Tall x 11.5” Wide.
Recommended max aftermarket wheel for BEST results - 9" Wide with a backspacing between 4.75"-5.25" / Please note that your wheel B.S. changes how close the tire side wall is to possibly rubbing on the Cognito UCA.
Max tire size on stock rim 285/75R16 or 285/70r17.
GM H2 wheels will fit with 285/70r17 tire size.
There are many tire and wheel combos that can work on this kit (some fit better than others). The key is to keep the wheel and tire combo from sticking out of the wheel opening so you have little to no rubbing at turning on the fender and or bumper, BUT also not running such a heavy backspacing that your tire pulls in close to the UCA and ends up rubbing.
Have the vehicle professionally aligned to the following specifications for the 2"-3" kit located in the installation instructions.
Download Installation Instructions: Here (http://www.cognitomotorsports.com/pdf/7012.pdf)
Tools needed for install: Torsion Bar Key Tool, Torque Wrench, Metric Sockets to 22mm, Metric Wrenches to 22mm, Tape Measure, Hydraulic Jack, Jack Stands, 1/2" Impact Gun and Compressor, Grease Gun, Good Size Hammer

You can find the packages we offer here on our site: Leveling Packages (http://www.norcaltruck.com/shop/index.php?cPath=2_386)

The Stg.3 UCA (Standard) Package (http://www.norcaltruck.com/shop/product_info.php?cPath=2_386&products_id=1068) is out most populare.

thanks for the help