Add a block in the back and Top Perch in the front

Ok... so right now my truck is sitting on a 1.5 inch leveling kit and bottom perch, and completely stock in the back. I want to put on 37s and absolutely do not want to swap the fenders. I'm not sure how much going to top perch or mid perch raises the front though. I'm thinking of doing the readylift 1.5" block to raise the back and then match it with the front perch mod to keep it sitting level. Hopefully this will be able to squeeze 37s without rubbing. By my calculations, I should have about 3" of total lift in the front. However I have a few concerns.....

Is it safe to go to a perch mod with a leveling kit?

How much will the rear block compromise the ride?

Thanks guys.

---------- Post added at 02:33 PM ---------- Previous post was at 02:29 PM ----------

Actually I think I'm gonna spend a little bit of extra cash and go the better route with deavers or nationals (recommendations please) to go with the top perch in the front...

Basically I just need to know how much mid and top perch raise the front so I can decide how much to add in the back.

Thanks again.

Top perch - get ready to work on that front end a lot. Blocks in rear - no bueno. Go with springs. Look at the new Icon system. Are you staying with stock wheels? If not, you're going to rub unless you don't go offroad.

Good luck!

From what 2014RubyRed said... looks like I'm going with mid perch on top of my leveling kit in the front and deavers or nationals in the back.

Anybody know how much mid perch will lift the front end?

so you're going with mid perch and a level on top of that?!?! mid perch should level you out just fine. mid perch i want to say 1.5-2" max...

Do NOT do a perch mod with a spacer lift on top of that. It will raise the front of your truck too much and cause nothing but problems. I would recommend top perch, no spacer, and a set of Deaver springs if you want to sit ride and ride right.

Problem with top perch on a 2012 or newer is the torsion differential. some have experienced problem with the angle it puts the half shaft in. I have a 2011 and have it at top perch no problems.

SDHQJASON said:

Do NOT do a perch mod with a spacer lift on top of that. It will raise the front of your truck too much and cause nothing but problems. I would recommend top perch, no spacer, and a set of Deaver springs if you want to sit ride and ride right.

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Jason,
Will the +3 Deaver set and top perch accommodate the 37" Grabbers without rubbing on stock fenders while keeping the overall stance level? I think so but would like your opinion.

Should also consider the ICON RXT multi-rate leaf springs. They have 3 positions and for max height, it includes an add-a-leaf.

http://iconvehicledynamics.com/shop/781-ford-svt-raptor-rxt-multi-rate-rear-leaf-springs.html

RDFTS said:

Should also consider the ICON RXT multi-rate leaf springs. They have 3 positions and for max height, it includes an add-a-leaf.

2010 - 2014 Ford SVT Raptor RXT Multi-Rate Rear Leaf Springs

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Thanks RDFTS. I'll look into them as well.

SQAudiophile said:

Jason,
Will the +3 Deaver set and top perch accommodate the 37" Grabbers without rubbing on stock fenders while keeping the overall stance level? I think so but would like your opinion.

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I would like to know this as well. I have a 2010 and I've considered going to top perch if I can fit 37s. Even if I could only use 37s for daily driving and then switch wheels and tires to 35s for off-roading, I'd be ok with it.