What is a RSK? - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 02-04-2013, 06:09 PM Thread Starter
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What is a RSK?

I've seen people mention rsk on here. What is it, what does it do, and what does it stand for?

2001 F250 ECLB 7.3 PSD 219,000 miles
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post #2 of 6 Old 02-04-2013, 06:12 PM
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Reverse Shackle Kit.

On the OBS, Ford got REALLY stupid and put the shackle in FRONT of the spring.
the CORRECT location is BEHIND the spring.

a RSK moves the shackle to behind the spring. It corrects the ride and give a lil lift in the process

Looking for Blue 40-20-40 seats. PM me !!!!!!!
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post #3 of 6 Old 02-10-2013, 07:16 AM
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it is a "shackle reversal" everywhere else but in powerstroke land they call it an RSK.
dunno why but I assume someone's marketing ploy

1997 F250 rclb 4x4, Comp910s, SRP1.1, Irate T4 s468,FullForce 350/200, homebrew efuel with i̶n̶ ̶t̶a̶n̶k̶ ̶a̶e̶r̶o̶m̶o̶t̶i̶v̶e̶ ̶1̶1̶1̶4̶2̶ A1000 5/8" drawstraw, Diesel Innovations fuel rail feed fittings, balljoint D60f Detroit Locker, zf5 sachs K70263-01CB ceramic clutch , Grizzly locker 10.25, 315/75/16 Wrangler MT/Windowed 7.3 Oct 9/14
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post #4 of 6 Old 02-10-2013, 07:19 AM
m j
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Quote:
Originally Posted by Diesel_brad View Post
Reverse Shackle Kit.

On the OBS, Ford got REALLY stupid and put the shackle in FRONT of the spring.
the CORRECT location is BEHIND the spring.

a RSK moves the shackle to behind the spring. It corrects the ride and give a lil lift in the process
there are reasons to locate the shackle in the front. with the factory, flat or neg arc, springs the front makes a lot of sense.

1997 F250 rclb 4x4, Comp910s, SRP1.1, Irate T4 s468,FullForce 350/200, homebrew efuel with i̶n̶ ̶t̶a̶n̶k̶ ̶a̶e̶r̶o̶m̶o̶t̶i̶v̶e̶ ̶1̶1̶1̶4̶2̶ A1000 5/8" drawstraw, Diesel Innovations fuel rail feed fittings, balljoint D60f Detroit Locker, zf5 sachs K70263-01CB ceramic clutch , Grizzly locker 10.25, 315/75/16 Wrangler MT/Windowed 7.3 Oct 9/14
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post #5 of 6 Old 02-10-2013, 07:43 AM
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I developed the RS-SD mod using SD springs and a RS kit 12-13 years ago, but it Requires a D60 swap. We have helped thousands perform this mod. It will transform a OBS trucks ride. Actually can ride better than any stock SD



We also developed the 99-10 axle swaps with suspension for the OBS.

PM me if I can help.
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post #6 of 6 Old 02-12-2013, 05:05 AM
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Quote:
Originally Posted by m j View Post
there are reasons to locate the shackle in the front. with the factory, flat or neg arc, springs the front makes a lot of sense.
Then why do the SD(with flat springs) have the shackle in the rear?

Looking for Blue 40-20-40 seats. PM me !!!!!!!
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