Looking to lift my 2004 XL 4 inches. Do I run 31's? Since it's just an XL it isn't lifted from the factory. Also gonna run Ballistic Jester 17x9 for wheels. Anything helps, thanks.

Check this out, I drew this up today on coil springs.
Coil springs 101

I also have this link on Doestch Tech spindles that will lift 3"
http://www.shocksandsuspension.com/s...ndles.asp?dc=5

Here's how to install the spindles:
How To: 3" Doetsch Spindle Install

A body lift is always an option.

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2007 Regular Cab - 2.3 DOHC - 5 Speed Auto - 4.10 Gears - Maxtrac 7" Lift - Fiberwerx 3" Fenders - Bilstein 5100 Series - 15x10 Ultra 164's - 35x12.50x15 Red Letters - Custom dents