02 Nav Suspension Options

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Newbie questions.... I read through several post and learned a lot, but i still have questions. I have a 2002 Navigator with 4 corner air and awd. I'm looking to ditch the soccer mom look the hwy tires and get some 33" tako's with some room between them and the fenders. Although I really LOVE the stuffed look of big tires with no lift or a minimal lift/level kit, I don't think a 285/75/17 or 305 will work after my air lets out of the bags if I don't do anything to the suspension. I know 315's are a laughable no on multiple levels, to bad, the 315/75/17 tako is an amazing tire & look. But...., I digress. To my questions!

First off, my 4 corner air is working fine. But if I crank the torsion bar for 1.5" - 2", what can I do to lift the back while retaining the air?

If nothing can be done to lift the air rear, will the Monroe 90010, 90006 or another conversion kit yield a higher ride height than the others? Do the 7,700lb torsion bars do a darn bit of good to lift the vehicle (I think this is no) or would they just make the ride stiffer (I think this is a yes)?

Beside the Monroe coil over spring & coil conversion, does anybody make a set up to swap the coil over shock springs for some lift and who makes 1" - 3" coil spacers for the back? (Yes I know that as I approach 2'+ of front lift i will go through CV Boots like M&M's)

Does the 2" or 3" PA body lift work on a Navigator?


Thanks for reading, I'm looking forward to responses!
 
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