The Daystar spacer/leveling kit is a 2-1/2" spacer, I'd try to stay with a 2" spacer to help all of your angles. The 4" AAL is going to make you sit stink bug, by the way. Go with a 2" AAL, unless they make a 2-1/2" but I'm almost positive the don't.

Just remember that this is going to effect your LCAs, UCAs, CV axles, tie-rod ends so don't be suprised if you need to change out some of these parts earlier due to wear and tear.

 

well im already sitting low in the rear and if i add 2 or 2.5 inches more to the front than a 2 in aal will still have me sitting low in the rear i will have to have atleast a 3 but im gonna do some mesuring because I think i will end up needing a 4 to get it to sit level with this fabtech lift it has awlays seemed to sit low in the rear and i pull alot of heavy stuff so it really sits low then

 

rsiler- just how bad do u rub now? What backspacing do u have on your rims?

I would say add a 2" not a 2.5" spacer. U might even try a 1.5" first...

 

I dont rub now at all I just wanted to raise it higher so i could get bigger tires but its fine with the 37's not real sure what the back spacing on the wheels are i will have to check next time i take them off.

 

I believe u, but it's just hard to believe I do not rub "at all". Do you have any bigger pics of your truck/setup?

 

Not to sound like a spoil sport or to knock anyone's thoughts on doing what they want, but add a lot of common sense to this and look for a better way to accomplish what you want to do. I'm an oldtimer by many standards, done a lot of things the right way and a lot the not-so-right way. Been wheeling for 30 years, so I have seen the good, the bad, and the ugly.

I'd ask the manufacturer of the kit. Most of them recommend against using a leveling kit with a lift and there's a bunch of reasons why, including angles of all the components, longevity of parts, SAFETY, etc. Why not buy a properly engineered 8" kit and not lift the back as much (depending how the lift comes, remove a leaf or something).

There's a HUGE liability issue if you cobble together a lift and it fails. And the lift manufacturers insurance will wash their hands of you. Spend the money to do it the right way, suspension shortcuts can get people killed.

The manufacturer's spend a lot of money on properly engineering these kits, if it was as easy as adding a 2 or 2.5" block to turn a 6" kit into an 8", don't you think they might be smart enough to offer it that way?

Not asking to **** anyone off, but the internet lets everyone have their say - sometimes the advice is good, sometimes not so good. Just because something can be done does not mean it should be done. Please use your heads - better to share both sides of an idea that slam our heads into each other.

 

Its ok your not the first one that has questioned why mine dont rub with 37's and honestly i dont know why it dont but it dont the only time i have ever had it rub is if i turn hard and hit a HARD bump/curb it will rub just a little but has only happend a couple times ever so i dont consider that as rubbing. The lift and wheels and tires were all selected and installed by profesionals so my only answer would be i guess they got the back spacing just right cause it has been off road in the mud alot and i have never had a problem with rubbing the front edges of my air damn are trimmed a little bit but thats all i know of that would be different than any other f150 with a 6in lift. as far as pictures I will try to get some better ones put up soon.

 

I appreciate your thoughts and I am not trying to rig anything up I had just heard of some people doing it so i thought it was a normal thing but after looking at some of the pictures of the angles it creates and people having to change ball joints prematurly I am having second thoughts cause my truck is still under warranty and i dont want to do anything to jepordize that so I am probably gonna just stick with the 6 in lift and 37's or I may try a body lift and go up to 38's I just cant see spending the money for a whole new 8in lift after spending all the money on this 6in lift so thats out of the question. I may just leave i alone it is pretty big as it is I was just looking at my options but thanks for you input i welcome all input pros and cons

 

Thanks, a lot of the time you get slammed for disagreeing with the way someone does or wants to do something. I've just seen too many broken trucks to not let a guy know the options...

I'm swapping my 3" to a 6" and going 37s... just not sure how much cutting I am looking at!

 

why would your angles be any different having a 6" kit and a level kit compared to factory suspension and level kit? i have a six inch procomp kit without the level kit and my angles look the same as factory.. so it would seemthat if i put the level kit on my truck would be about the same as puttin one on the factory right.. your angles change both ways..

 

I'd like to know what wheels you have and what kind of backspacing they have? I've got 20x10 Moto Metal 951s which have about 4-5/8" of backspacing and I have minor rubbing at full lock, hitting a larger bump.

Yes you are correct but no one is saying that isn't true. However. The bigger the tires you add, the more stress it causes on your ball joints, LCAs, UCAs, tie-rods and cv angles. This doesn't help when you don't have good angles from adding a spacer/leveling kit. Now I'm not saying I wouldn't do it but you will experience premature wear and tear on a lot of front end components.

 

im thinkin of addin a 2" spacer and a shackle kit instead of aal, and puttin 37's, right now i have 35's on 18's..i dont go off road at all, at least not yet ive never put my truck in the mud so this set up should be pretty safe right?

 

[QUOTE=ThumperMX113]I'd like to know what wheels you have and what kind of backspacing they have? I've got 20x10 Moto Metal 951s which have about 4-5/8" of backspacing and I have minor rubbing at full lock, hitting a larger bump.
My wheels are MAAS M53 20in I will try to see if i can find out what the backspacing is.

 

Most of the lift kits increase the angles. Now the leveling kit - which increases the angles (they force the suspension downward) by itself will add that much more stress. A typical 6" lift drops the diff by 3" - the rest of the lift is from moving the suspension down - so everything is already under additional stress. So, all of the angles are pressed that much further. Basically you are using up all of the downward movement of the suspension - the equivalent of tightening up torsion bars - you add up-stroke, reduce downstroke, and everything "rests" at an unnatural angle.

The 6" kits that I have worked with all drop the diff about 3", drop the spindles about 3" and force the suspension down 3". So your tie rod end and axles shafts are already force down 3" further than stock.

I have never looked very close at the ProComp kit, but the value of lowering the diff and the susepnsion by 6" is a bit counter productive. Easy way to tell if the angles are the same as stock would be measure the diff drop bracket for the diff - if the bracket is 6" then the axle angles are the same as stock.

 

well I broke down and called Fabtech to ask their opinion and they say they do not recommend adding the spacer cause it puts to much strain on the ball joints and specially the tie rods they said that on f-150's and the chevy 1500's that the steering is not very strong anyways and that you could break a tie rod end and we all know what that means if it was to break while you were driving I also asked him about the adjustable coil overs they have and he said that i cold only safley get an inch of raise out of them that if you turn up the coil overs anymore than that that you are creating the same problem so I guess i may just leave mine alone and stay with the 37's i got but i thought i would share this info with anyone else that may be thinking of doing it. Im not saying it can't or shouldn't be done but I personally feel it would create to much of a hazard for me to do it to my truck I drive way to many high speed miles on the freeway to risk breaking something on the front end but I appreciate everyones Input and help on this topic.