Sky's 2"and 4.5" Rear Shackle Flip

3646 Views 13 Replies 7 Participants Last post by Bradbilt, Aug 29, 2014

Greger96obs

Discussion Starter · Aug 26, 2014

Does anyone have experience with doing a rear shackle flip on an OBS Truck.If so what are the result's?Did you need to use a 2*or 4* tapered block to help with pinon angle?Did you need a zero rate block to center the axle in the wheel well?I did PMF's 3.5 in front and trying now to bring up the rear of the truck? 6" block seem's really big,I allready have B code rear springs.Any suggestion's?Thanks!

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zilla68

· #2 · Aug 26, 2014

5" flat and 2.5 pmf rsk is just right. I didn't listen to those in the know and I got the 4.5 with 2 degree block, and it sits almost level.
so a 5" flat with a 2.5 pmf should equate to 6" flat with a 3.5 rsk I'd think

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Greger96obs

Discussion Starter · #3 · Aug 26, 2014

I'm Trying to stay away from a 6" block,if i can seem's pretty big.That's why i asked about the rear shackle flip kit? It's where you turn the rear shackle into a tension type rather then compression.

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gnxtc2

· #4 · Aug 26, 2014

I have Sky's 3" RSK and use a 5" rear block. If going with a 6" block, look into some type of traction bar to help with the wrap up.

Billy T.
[email protected]

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Bradbilt

· #5 · Aug 26, 2014

I have nor first hand expericae with Either of SKYS, REAR Shackle flips

but I herd enough bad to not go with them. I went with RuffStuffs REAR shackle flip. Universal Shackle Flip Kit - RuffStuff Specialties

I was MORE than pleased with the construction(way over built).

It lifted the bronco to the same height as the 4" block I removed AND it made it ride better. I had zero pinion angle issues but again, i have a bronco

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Greger96obs

Discussion Starter · #6 · Aug 26, 2014

Would you do this mod to a 96' CCLB i need about 2" lift over stock?

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Bradbilt

· #7 · Aug 27, 2014

Greger96obs said:
Would you do this mod to a 96' CCLB i need about 2" lift over stock?

No. Because the REAR shakle flip from Sky has had such bad reviews and the RuffStuff one is 4" so you would gain nothing

But you could do the ruffstuff shackle and a 2" block

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7.3diesel94

· #8 · Aug 27, 2014

I believe you lose a lot of load capacity when you flip the shackle. I would just go with the 6" block or give pmf a call and talk to them about some traction blocks

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leojr

· #9 · Aug 27, 2014

I talked to PMF the other day about a rear shackle kit for the OBS as they offer one for the Superduty. They said they could do it but with their recent move it wasn't on their radar yet.

Maybe if you call them too asking for this they might consider prioritizing them?

And the RuffStuff looks strong, at least from the photos I've seen.

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NotStock

· #10 · Aug 28, 2014

If anyone had a stock hanger bracket they could send me, I can design one in a couple of hours. If I have to go out and find a truck to take measurements off of, it will take me awhile to be able to have enough time to do it. As it is, Im here 10-14 hrs a day, lol.

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leojr

· #11 · Aug 28, 2014 (Edited)

NotStock said:
If anyone had a stock hanger bracket they could send me,

PMF, do you need the front and back hangers?

If anyone has these parts for PMF I'll pay the shipping! (I want a 4" for my OBS and would really prefer to buy from PMF.)

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Bradbilt

· #12 · Aug 28, 2014

NotStock said:
If anyone had a stock hanger bracket they could send me, I can design one in a couple of hours. If I have to go out and find a truck to take measurements off of, it will take me awhile to be able to have enough time to do it. As it is, Im here 10-14 hrs a day, lol.

I can probably send ya one

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leojr

· #13 · Aug 28, 2014

Brad, my offer still stands…

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Bradbilt

· #14 · Aug 29, 2014

leojr said:
Brad, my offer still stands…

Its no big deal.

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