RSK with SD Springs/ Rear Shackle Flip - Ford Powerstroke Diesel Forum

94-98 7.3L Exterior Discussion Body and Accessories Talk

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post #1 of 30 Old 03-26-2008, 02:19 PM Thread Starter
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RSK with SD Springs/ Rear Shackle Flip

I have been reading a lot about the RSK with the SD springs. I just have a few questions that I can't seem to find answers to.

IIRC, the Super Duty V codes dont give any extra lift but have a softer spring rate, and ride the smoothest, while the X codes add 1-1.5" of lift and are still smoother then the OBS springs.

My question is, if I go with the 3" RSK and the X codes, that will give me 4-4.5" of lift in the front, correct?
Also, If I do go with the X codes in the front will I need longer shocks, brake lines, and a pitman arm???


My other is about doing a Rear shackle Flip.

I was thinking about going with Super Duty Springs in the rear as well.

What is the difference between Super Duty rears if any? Do some add lift do some ride smoother?

Also, If I do go with super duty springs in the rear will I be able to do a Rear Shackle Flip?




My main goal is to have a smoother ride, 3-4" of lift and the truck to sit level.


thanks,
Justin

1996 Ford F350, 7.3 PSD, crew cab, 8ft(Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Nitto Terra Grapplers, 222,000 miles, 3x4" down pipe, 4" exhaust with 5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.


"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #2 of 30 Old 03-26-2008, 03:41 PM
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Leaf Spring Question

I am glad I am not the only one with the same questions. I am looking at the exact same thing you are. I am going to swap a rigid axle and am trying to figure the best route for the leafs.

'97 F-250, 4x4, Supercab, D60 Swap, Intake, Turbo Back Exhaust, TW 6 pos, IDM Mod, HPX, FS 2500 Oil Bypass, Quadzilla Recon XZT Digital Gauge, RSK w SD springs, 1.0 compressor housing, EBPV delete, modded pedestal, E-fuel with "Tight-wad" regulator mod
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post #3 of 30 Old 03-26-2008, 03:54 PM Thread Starter
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no body ever seems to ask those questions....

1996 Ford F350, 7.3 PSD, crew cab, 8ft(Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Nitto Terra Grapplers, 222,000 miles, 3x4" down pipe, 4" exhaust with 5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.


"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #4 of 30 Old 03-26-2008, 04:04 PM
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yeah, I've asked on other sites also, but usually don't get an answer. I figured that with the amount of people that have done the swaps and changed leafs, there would be someone to tell the good and bad to prevent others from making the same mistakes.

'97 F-250, 4x4, Supercab, D60 Swap, Intake, Turbo Back Exhaust, TW 6 pos, IDM Mod, HPX, FS 2500 Oil Bypass, Quadzilla Recon XZT Digital Gauge, RSK w SD springs, 1.0 compressor housing, EBPV delete, modded pedestal, E-fuel with "Tight-wad" regulator mod

Last edited by hijo202; 03-28-2008 at 10:48 AM.
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post #5 of 30 Old 03-26-2008, 04:12 PM Thread Starter
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Yea, you would think so.

1996 Ford F350, 7.3 PSD, crew cab, 8ft(Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Nitto Terra Grapplers, 222,000 miles, 3x4" down pipe, 4" exhaust with 5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.


"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #6 of 30 Old 03-26-2008, 06:03 PM
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Quote:
Originally Posted by GilroyRacing View Post
no body ever seems to ask those questions....
I sure ask alot of Q's!!

Plus there is alot of talk about this, especially on TDS.


I am going through this whole project right now as well. I got the Dana 60 in, now I am trying to finish up getting the sway bars in.......then hopefully I'll get my 3" RSK done this weekend.

Once I fully decide on spring codes, I'll swap out the springs....again.

2008 Dodge 2500 Mega Ram, 6.7L, 4x4, 3.73s

SOLD...
1997 F-250 HD, PSD, XLT, Off-Road Pkg., 3.55's, E4OD, 4wd, Dana 60 front axle, 3" Sky RSK, 150,000 miles, Tunes by XM, triple Auto Meter Guages, Tymar Intake, Tymar DP, Straight piped, Killed the kitty, 5" Miters, Programs by DP Tuning, Lund visor, Diamond plate bed rails, Delta toolbox, Rollin' on 315/70/17's on some Raceline's.
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post #7 of 30 Old 03-26-2008, 06:16 PM Thread Starter
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Yea I saw your post on TDG. I have been reading a lot over on TDS about RSKs

1996 Ford F350, 7.3 PSD, crew cab, 8ft(Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Nitto Terra Grapplers, 222,000 miles, 3x4" down pipe, 4" exhaust with 5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.


"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #8 of 30 Old 03-28-2008, 10:47 AM
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Leaf Spring ?'s

Justin, I may sound stupid, but what are X and V code springs? What year are you looking at? Does this mean different spring rates between the X and V? I am not wanting much lift when I do my front axle swap, but am wanting a decent ride (not having my teeth knocked out of my mouth would be great). I have called numerous leaf spring companies, but they only want to sell me replacement springs for the OBS, or make "custom ones" that are very $$$$$$. I have looked at the RSK, but decided on just staying with the stance now. I only have 2" between my bumpstop and leafs now on a level surface. This is why I would like a little lift and a nicer ride-is that asking too much?? Any idea regarding the OBS spring mounting points in regards to using the newer style springs (do they have to be moved since I am not gonna do the RSK)?
Thanks for your time....

'97 F-250, 4x4, Supercab, D60 Swap, Intake, Turbo Back Exhaust, TW 6 pos, IDM Mod, HPX, FS 2500 Oil Bypass, Quadzilla Recon XZT Digital Gauge, RSK w SD springs, 1.0 compressor housing, EBPV delete, modded pedestal, E-fuel with "Tight-wad" regulator mod

Last edited by hijo202; 03-28-2008 at 10:51 AM.
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post #9 of 30 Old 03-28-2008, 05:38 PM Thread Starter
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If you read in my first post, the difference in the V and X codes springs, is that the X codes will give you 1-1.5" of lift. The x code springs were installed on 99 to 04 F250-F350 trucks.

The SD springs are longer, but they will work. As ou mentioned, you will have to mave your mounting points.

You can also use SD springs in the rear.

1996 Ford F350, 7.3 PSD, crew cab, 8ft(Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Nitto Terra Grapplers, 222,000 miles, 3x4" down pipe, 4" exhaust with 5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.


"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #10 of 30 Old 03-29-2008, 06:49 AM
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leaf springs

Thanks Justin, Yeah, I read the lift difference in your 1st post, but I wasnt sure if they were for different years, or what exactly, but thanks for clearing that up.

'97 F-250, 4x4, Supercab, D60 Swap, Intake, Turbo Back Exhaust, TW 6 pos, IDM Mod, HPX, FS 2500 Oil Bypass, Quadzilla Recon XZT Digital Gauge, RSK w SD springs, 1.0 compressor housing, EBPV delete, modded pedestal, E-fuel with "Tight-wad" regulator mod
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