Rear Shackle Flip ? - Ford Powerstroke Diesel Forum
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Old 02-14-2014, 10:58 AM
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Rear Shackle Flip ?

Instead of traction bars ......

I would like to reduce the amount of lift block I have ~6" to a stock F-250 block is the shackle flip something that would accomplish this and if so are there any sides effects or negatives? I've searched and can't find anyone that has done it to reduce Blocks....

It comes in 2.5" 3.5" and 4.5" versions......

1999-2012 Ford F-250/350 Shackle Flip Kit

I can see possibly needing a custom block so it sits level or slightly raised but that's it.

Denny
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Old 02-14-2014, 11:06 AM
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Check your pinion angle before and after A friend of mine back in high school had a mid-70s Chevy and we did a shackle flip to it he had nothing but problems throwing the rear end ujoint all the time. Didn't dawn on us back then but the problem could probably have been fixed by installing a wedge between the springs and axle. Driveshaft looked straight with rear end but we never thought about what happens when you hit the throttle hard


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Old 02-14-2014, 11:08 AM
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Quote:
Originally Posted by Brent Beeler View Post
Check your pinion angle before and after A friend of mine back in high school had a mid-70s Chevy and we did a shackle flip to it he had nothing but problems throwing the rear end ujoint all the time. Didn't dawn on us back then but the problem could probably have been fixed by installing a wedge between the springs and axle. Driveshaft looked straight with rear end but we never thought about what happens when you hit the throttle hard


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Those look legit let us know how they work out I'd like to get rid of my blocks as well


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Old 02-14-2014, 12:45 PM
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it will reduce the amount of weight you can carry , and peobably give you more axle wrap then you have check out sky mfg . they have some for superdutys that look like fabtechs front raduis arms
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Old 02-14-2014, 12:53 PM
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Trevor makes good stuff but these aren't for me

Quote:
the installation of this will move the axle forward and increase pinion angle. The larger the lift amount with this method, the greater the change. This can be corrected with adjustable location lift blocks, pinion correction shims, or a different tapered block.
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