I'd think the only diff would be the spring rate.. but, but more so with a gas vs. diesel. I do know the springs for a gas motor are "lighter" than the Diesel springs.
There is no difference between the front springs of an equally optioned F-250 & F-350. The spring rates are dependent on motor & option packages (heavy service, payload, snow plow, and camper packages to name a few).
__________________ Semper Fi
"Some people live an entire lifetime and wonder if they have made a difference in the world. Marines don't have that problem." - Ronald Reagan
Well I was curious if the springs from an F-250 would work for my F-350.
The engine is exactly the same. The f-250 donated its engine to my F-350.
I figured they look the same, so they probably were.
As for the package details? I have absolutely no idea. My f-350 was set up with a utility bed. (Those big ugly square boxes with a million doors.) And the F-250 has a normal bed on it. I'm not sure if the spring rate would be different for the F-350 because of that. But I only really need to know about the front end. I wouldn't think a package detail would really influence that.
__________________ 1988 Ford F-350 460ci EFI
37" Super Swampers - Warn Winch F-350 Planning Thread
Maybe I'm wrong but I thought F250 and F350 front springs are different... the rear ones are mostly the same only with bigger blocks.
My F250 was borne with springs negatively arched... when I bought my donor F350 truck for my D60 swap it had front springs that were positively arched... every truck I've seen is like that. But I am talking about the 86 to 96 F series trucks...
__________________ 1991 F250 D60 SAS/10.25LS 7.3 NA Money Pit
not sure on the smaller gas engines, but 460 F250 and F350 use the same front springs, and the diesel 250 and 350 use the same front springs in 88,89,90, and 91
__________________
Tom
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I'm fairly sure the arch is the same. Barely any really. :P
Thats kind of what I was interested about though. I was looking to build spring packs with the F-250 springs. I don't want my F-350 disessembled for awhile getting in the way of things.
__________________ 1988 Ford F-350 460ci EFI
37" Super Swampers - Warn Winch F-350 Planning Thread
on my 2003 f-350 i have 6 leafs up front, where the diesel 2001 f-250 has only 2 springs. in the rear the f-250 had 6 leaf springs, and my 350 had 7 leafs. i think there is a difference.
86-96 F250 4x4's have negative arched springs from factory /\
F350 4x4's have positive arched springs factory \/
This is a fact with the 250 I have (which is EFI 460), and the F350 Dana 60 that's going under the front. In the rear, overloads and blocks are most of the difference, unless its dually.
The arch is different, and the TTB springs have about at least double the spring rate of solid axle ones... With a solid axle bolted to them they will ride horrible and not flex at all... That's how the front end of my big truck sits right now...
__________________
92 W250 LE, 4x4/CTD/G360/D60/D70U
89 W250, 4x4/CTD/G360/D60/D70U
86 F250 HD 4x4, 6.9/T19/broken D44 TTB junk/10.25. Turbo no more... Poor thing
86 F350 4x4 Mild 460/T19 D60/welded 10.25/38.5x11 Boggers, Warn 8200 up front, M12000 out back... It's not what you BUY, It's what you BUILD
The arch is different, and the TTB springs have about at least double the spring rate of solid axle ones... With a solid axle bolted to them they will ride horrible and not flex at all... That's how the front end of my big truck sits right now...
Thats what I was looking for!
Thanks.
The arch on my f-350 is like.. zero haha.
The f-250 looks as if its supposed to be negative, but it kind of goes both ways, like I said the passanger side spring is kind of wavey.
__________________ 1988 Ford F-350 460ci EFI
37" Super Swampers - Warn Winch F-350 Planning Thread
on both the 88 460 5 speed powered F250 and F350,
and 88 diesel 5 speed powered F250 and F350's i scavenged for the D60's to swap into the 250's, the trucks had the same identical springs in the fronts.
same arch, and same weight rating each truck with the same engine.
in fact, the 88 460 truck had one 250 spring and one 350 spring in it, because each truck had a broken spring. so i just used the 2 good springs.
__________________
Tom
JOIN THE NEW JERSEY CHAPTER CLICK HERE
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1991 F250 D60 SAS/10.25LS 7.3 NA Money Pit 
and I got just regular springs...
on both the 88 460 5 speed powered F250 and F350,
