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My 2.5" SFD


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So after being inspired by people on this site, I decided to make myself a SFD. Thanks to the info available I had all the block dimensions without even pulling a bolt out. The strut spacer geometry was the only tricky part. I actually only spaced the struts 2.125" and the sub frame the full 2.5. This way it brings my cv angle back closer to stock.

 

Here are the strut spacers

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I believe the angles were 12 degrees and 5 degrees and you can't just simply add them together and divide by two to find the created angle at 45 degrees to the normal axis. If you draw it on a 3D softare you will see that it is closer to 12.5 degrees. I just wire EDM cut the pipe to exactly 12 and 5 so i didn't need to find the angle at 45. Welding them in orentation to the flanges was the confusing part, but I got it and they worked great! My chamber angle is perfect.

 

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The steering was a problem. I started with just a block to bridge the gap. Bad idea. It was terrible. My steering was screwed up before which I found out while doing the SFD that the U joint was siezed. So after arm wrestling my steering wheel for a couple days, I took out the block and bolted and welding in a second U joint. It works perfect now.

 

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For the rear I used F250 shocks and made some coil spacers from some pipe.

 

 

Before with OME HD's front fender height of 35.5" and rear 36.5

 

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After front fender height 37 3/4 and rear 39"

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I keep reading about strapping up F250 shocks, but haven't gathered the make/model of the F250 in question... Mind clearing it up for me? I don't really want to burn $80/shock for the Ranchos, when pickup truck shocks are usually $30 with the same travel.

I appreciate any info.

 

Thanks,

Mario

 

BTW: Beautiful SFD, beats paying $500+shipping on the prefabbed. If you ever feel like building another set minus the steering parts, I'd gladly buy it ;)

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I believe the angles were 12 degrees and 5 degrees and you can't just simply add them together and divide by two to find the created angle at 45 degrees to the normal axis. If you draw it on a 3D softare you will see that it is closer to 12.5 degrees. I just wire EDM cut the pipe to exactly 12 and 5 so i didn't need to find the angle at 45. Welding them in orentation to the flanges was the confusing part, but I got it and they worked great! My chamber angle is perfect.

 

 

 

I'm bumping this thread to point out how little sense this made

 

Have a nice day!

 

-Kyle

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