After market Leaf spring block

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A.I.I.Raciing

Dezert 8MYMNEY
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If/when my Raptor comes in I plan on driving from the dealership straight home(4 miles) and pulling the block out, now I've heard that one side of the block is larger and it tapers down, if this is true than I'm assuming its to keep the pinion angle correct.
Now I've talked to guys that say they don't get any vibration when they took it out but over time I'm assuming there could be U-joint issues and if I can avoid that by putting in the smallest "block" possible I'd like to.

So my question is does anyone make a much smaller block that I can put in there?
 

pirate air

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The block is tappered for pinion angle. But since you lower the chassis to the axle, you won't need as much correction for the desired working pinion angle. It would probably be fine without it. I have the first generation nationals that lower the rear and they put my pinion angle 2 degrees below ford specs. My transfercase to drive shaft angle is actually in worse shape. There is no angle and that in itself causes premature u joint wear.
 

RPG

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If/when my Raptor comes in I plan on driving from the dealership straight home(4 miles) and pulling the block out, now I've heard that one side of the block is larger and it tapers down, if this is true than I'm assuming its to keep the pinion angle correct.
Now I've talked to guys that say they don't get any vibration when they took it out but over time I'm assuming there could be U-joint issues and if I can avoid that by putting in the smallest "block" possible I'd like to.

So my question is does anyone make a much smaller block that I can put in there?

Brian I did this a long time ago and didn't like the way it drove after a few days.. The piston was too deep into the bypass and it felt really stiff. Looked good, but these trucks like to have ride height, and something tells me you won't baby it.
 
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A.I.I.Raciing

A.I.I.Raciing

Dezert 8MYMNEY
Joined
Jul 11, 2010
Posts
3,099
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7,877
Location
Costa Mesa
The block is tappered for pinion angle. But since you lower the chassis to the axle, you won't need as much correction for the desired working pinion angle. It would probably be fine without it. I have the first generation nationals that lower the rear and they put my pinion angle 2 degrees below ford specs. My transfercase to drive shaft angle is actually in worse shape. There is no angle and that in itself causes premature u joint wear.
How much did the Nationals lower the rear?

Need to get rid of the junk Ford leafs. The difference is remarkable.
One day, but I've gotta get the truck 1st

Brian I did this a long time ago and didn't like the way it drove after a few days.. The piston was too deep into the bypass and it felt really stiff. Looked good, but these trucks like to have ride height, and something tells me you won't baby it.
I don't plan on taking it easy on her, I also don't want it sitting like a monster truck either. I want it as low as possible at all 4 corners.
 

pirate air

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How much did the Nationals lower the rear?


.

About 1.5 inches if I remember right. It sits pretty level with mid perch done. I like the look but its not worth the up travel I lost. Plan on changing them out with stock ride height nationals and selling the ones I have now in the near future.
 
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