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Discussion Starter · #1 ·
Copied over from my build page but thought it might get a little attention over here too.

Well after driving my shortened wheelbase truck a little I have realized that not doing a rsk with sd leafs while I had the front end apart was a big mistake. The combination of the already stiff suspension and the shortened wheelbase has caused the truck to ride like a brick. The truck is so stiff going over bumps it'll knock you out of your seat.

I do love driving the truck, just not on roads with ANY kind of bumps....

I have to get this corrected above everything else so I have researched and come up with a few observations. I really like the PMF kit and will more than likely be running it with U-codes, the thing I always have trouble getting over is the rear shackle angle. It seems like every rsk I see regardless of make is the shackle angle is straight up and down or slightly raked towards the front.

I am no suspension specialist by any means but I have always been under the impression that the shackle is supposed to be angled towards the rear.

With my limited fabrication skills I have often looked at the rear hanger and wondered if I could modifiy it in such a way to move the hanger foward some, cut the ears off, weld some flat plate on it in such a way to move the ears foward slightly and weld the ears back on.
I then ran across an old thread that mentioned SKY has already come up with this and that they sell the hanger individually.

Since I dont see many threads regarding the rear shackle angle, I am looking to hear from anyone running the SKY modified rear hangers and if it would be worth modifiying or buying these hangers??
 

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I would be interested in this answer. I emailed sky with a similar question, no response, if I understand it correctly, about the springs appearing to be pigeon toed, mainly because the front seems to be wider than the rear.
 

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The rear front spring hanger relocation will get the shackle angle correct for SD springs. This is the way it should be done and is supplied with our RS kit.
 

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Discussion Starter · #4 ·
After some more research I'm thinking that building my own rear hangers is going to be the best route. Plan is a 2.5/3.5 PMF rsk with U codes and custom rear hangers.
Gonna cut the ears off the stock hangers leaving a flat surface to weld on some new hangers using something like this...
 

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Discussion Starter · #6 ·
They do look nice, but at approximately $120 I'm sure I could make mine cheaper. With just the pmf kit and no modified hangers im sure that the rear shackle angle would be way off. With the soft U codes I'm not sure that Sky's 3/4 offset hanger would be enough to compensate for the possibly slight inverted arc.
 

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With my pmf kit the rear shackles are made offset on each side so you don't need new hangers.
 

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Discussion Starter · #8 ·
I'm interested to see how it rides with the u codes and the pmf kit. If it rides well without the hangers I might just skip modifying the hangers. Really curious though if the rear hangers would help the ride any....
 
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