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Bringing this one back up. I currently have 4" leaf spring lift and would like to stay at that height. I'm tired of bouncing around on this suspension and looking to change it up. Is the full traction kit the way to go? If I was to go the other route (buying the 05 and up axles etc.) I would still need to buy a lift so I am guessing I would be in the same price range. Is there any benefit to going one way or the other?
I imagine if you got an 05+ axle and coilover kit, it would be a bit cheaper than the full traction kit. I am not sure when the better turning radius started but you could gain that as well.

Just converting to the 05+ axle with coils is supposed to be a good improvement.
 

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'05 up axle or Full Traction System

Have been looking into these options as well.
I found the tighter turning radius will be possible in both cases because the front leaf springs are out of the way. (the center line of the leaf is directly under the upright portion of the c-channel frame probably for strength reason, while the arms can be moved under the frame because the weight is supported by the springs). This gives about 1.5 to 2 inches more room at the rear end of the tire where it hits the leaf right now. And that distance is a lot to reduce the turning radius.
So to answer the question: I'd expect that both systems improve the turning radius about the same.
What did I end up doing?
I kept looking and found that the ultimate system would be going with air springs on all four corners (Yep, rip out the leafs and put airs in).
It is relatively easy finding a suspension system for the rear, for the front I found a mix, but nothing that I like. Of course there are the under-frame kits, but who wants a 12" lift? Not me....
So I am still in the market and am designing my own system. 4 links for front and rear, air bags, fox shocks. I decided for a watts linkage in the rear (will keep the upgraded sway bars - hellwig big wig - front and rear). For the front I am currently unsure if I should go with a watts linkage and put a rack and pinion steering onto the axle or keep a track bar and steering box as it currently sits....
 

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Full traction 4.5"

Hey guys, been busy. This kit is fantastic, made my old 99 ride like a new truck. Jesse Todd at Farmboy Fabrication in Florida is the man. He knows his stuff and is great to deal with. I am at 4" of lift right now and there is no problems, I told Jesse that I wanted to have 4" of lift with the option of going to 6" later and he picked the right shocks so I can do that.
It took me a good day to install the kit. Had a little trouble getting the shocks filled with nitrogen, nobody really does that here in Montana yet.
I get a lot of rubber necks when I drive my truck now.
I don't have a recent picture of my truck, I have 315 pro comp extreme terrains on now.
Hey Snosfun, I am ready to buy this 4.5" kit from FT but Overkill's comment has caused me some serious pause regarding going with the 4.5 or 6.0. I need to know how your kit handles off road and if you have experienced the "bottoming out" that Overkill mentioned in his post previously. And anyone that has the 4.5", please chime in.

I'd rather not go to with the 6" because it is a DD and the climbing up and down I'd rather not do. I currently am using replacement front springs by skyjacker. It is a leveling kit height. So it's about 2.5 maybe 3" . So adding another 1.5-2" I am not happy about but I need a truck with coils in the front. It's a either a new truck or FT. I'm done. It is actually cheaper for me to go with FT than getting in 05-07 truck considering the trade in value of my truck as it stands now, about 1K cheaper. But if I trade in mine for an 05-07, I will still want to put 35" tires on it etc, so I will be back in the market for yet another lift kit, abeit for coils. So it will be even more cheaper than 1K. So there is my dilemma.

Please anyone, give me your experience with the 4.5" kit regarding any "bottoming out" experienced. I am assuming there would need to be some offroading occuring for that to happen. I just can't imagine FT would spend the money on 4.5" that bottomed out. thanks everybody for reading this and posting replies.
 

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Looking to order a Full traction 8" for a 2003 F350 dually. Old thread I know. Got waaaay too much money in this 6 oh to ever get rid of it. Might as well do *** I want with it. Incidentally, I have now only 34k actual miles on this truck. Just got finished yanking cab and heads again and this time o-rings with felpros to 265. Decided against the aluminum heads for now. The price is still waaaay to high.
 
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