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Discussion Starter #1
What is the best way to lift the rear of the obs 7.3s for both towing any ride quality. For the front I already know I'm doing a rsk and an ad a leaf or f450 springs
 

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If you want any ride at all, I would NOT be looking at add-a-leafs or F450 springs

Do you have a F250 or F350?
 

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Discussion Starter #8
Just the pmf ones and all they talk about is the front of the truck nothing about what to do to the rear for a 3.5" kit what size blocks do I need to keep the factor rake of the truck
 

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If you lift the front 3.5" and want to maintain the same rake, doesn't it make sense that the rear needs to come up 3.5" as well? Seem pretty obvious.

Need to know what size block to use? Got tape measure and the ability to add?
 

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We developed the RS-SD spring swap...all that's needed in the rear is a 4-5" block and B codes..
 

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I did the dana 60 swap on mine and i was going to find a set of 4" blocks for the rear. I was told the f250 came with a 2.5" block and the f350 came with a 4" block. All ive got to do is find a place that has blocks for the rear.
 
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