looking for lift help

I haven't heard of anyone else having all the trouble getting the "lean" out like I did. Truck never wrecked, never abused, no aftermarket suspension parts.....just unexplained phenomenon. Nothing is ever easy when I'm paying the bill.... Everyone else that uses the same "kit" just uses the 1/4" spacer on drivers side and calls it good. My only logical explanation is, I'm almost 300lbs......

 

Shouldn't matter unless you were measuring your truck while seated in the drivers seat.

 

Or....My McDonalds lovin' oversized ass has smashed the life outta the springs.

 

This looks like a uuspension thread---I have a 98 Tacoma 4X4, it is not the TRD package. If I change the springs to the TRDs which will lift the bed about an inch, is that ok? Will it the change the angle of the axle to the drive line and cause vibration? What about the bed being an inch higher than the front end? Do I have to change over all the shocks and such?