How high with just springs

[Fatman489]

Alright I've searched a bit both on here and Google and can't find the answers I'm looking for so I thought I would just ask you all.
First off I'm looking at a 2003 F350 crew cab long bed 7.3 6 spd single rear wheel 4x4

1. How high can I take the front with just leaf springs before other mods are needed ? (Drop pitman ect I do realize I will need New shocks though)

2. I am also planning to raise the back( level with the front) with leafs and get rid of the stock blocks ... Without trimming fenders could I fit 37-12.50-20s with this amount of lift or will I have to drop to 35s ? I don't mind spacing the bumper or trimming plastic just don't wish to hack my fenders ... And am I correct to assume I would need a 4.5" back spacing on a 9 or 10 inch wide 20 inch wheel to fit the 37s? As of right now the truck will see very little if any offroad mainly just want a better stance and look for now as I'm only home to drive it three days a month lol

Thanks in advance guys and I apologize if this has been asked a billion times lol

[KDRacing]

I wouldn't go much more than 2" in the front without touching the trac bar at least. you could probably get away with 4" or so before worrying about the pitman arm. I have the skyjacker add-a-leaf leveling kit which i got about 2" in the front with and i noticed a difference in how the truck steered (sluggish) and drove, not that it is horrible but just different. I didn't drop the trac bar at all but had a hell of a time getting it lined back up.. So to answer your question, I woudl stick with 2", maybe 2.5"tops unless you want to start dropping the trac bar and pitman arm. I am just running stock tires (265/70) but i think you could fit 35"s with a leveling kit, there is alot of empty room in my wheel wells. my truck is also an 03 7.3 6sp 4x4

[20046.0]

First of all IMO, I wouldn't go higher then a leveling kit without changing trac bar parts and pitman arm.

I had a 6" kit that retained the stock pitman arm and trac bar. It has terrible bumpsteer and wandered all over the place.

You will need atleast a 6" lift kit to clear 37s for daily driving. I have a 8" and when I'm flexing offroad I can still rub my fenders.

[Fatman489]

Hmm I was really hoping I could go a little higher lol ... Might have to look into tracbar anf pitman arms hen thanks for the reply though

[Fatman489]

Ok so how how you feel I could go before driveshaft mods are needed? I figure the pitman arm and stuff can't be that expensive lol ...

[Betaracer]

Anything over 8" requires driveshaft modifying. Going higher than that will need crossover steering, and transfercase clocking when approaching 12".

[Fatman489]

Thanks for all the help guys .. seems this is going to be more trouble than its worth for just a temporary setup ... Think ill just ride stock height and tires and just start gathering the parts for the end goal of 14-16 inches of lift on 40-42s .... Again thanks for the help