I have a 1998 Toyota Tacoma 3.4 V6 extended cab with a three inch body lift and a busted suspension.  I have been wanting a suspension lift and was about to purchase a Daystar system, but my rear leaf springs gave out and my front coils and shocks are wearing.  What is the best bang for the buck? I am primarily in the mud, never in the rocks. I have looked at Trailmaster, Fabtech, Skyjacker, Downey, and All Pro Offroad, but I am on a budget. The kit I buy must have rear springs because mine are shot.  Also, will the Warn Spindle Nut Conversion Kit convert my auto lock in hubs to manual, or do I need to purchase the kit from Downey.  I do not believe I have auto differential disconnect.  Any help would be greatly appreciated.  

The fabtech suspension kit is pretty good. The Skyjacker kit is ok. I would not consider the Rancho kit. You may want to look at Rough Country - I'm not sure if they make a toyota kit, but these can be pricey.

I looked at the fabtech kit, but it did not include rear springs on the one i looked at. I was looking at the 3 inch kit, but am not ruling out a 5 inch one. know anything about the manual hub conversion?  

I'm not up on lift kits to Toyotas. I'm a Chevy K5 nut, myself.  About the only thing we have in common are the 6-bolt lugs.  Some 'kits' are only for front end and expect you to buy the rear leafs seperate. A lot of Chevy folks leave the six-leaf factory springs in place and get blocks or do a shackle flip conversion in the rear. - less expensive that way, unless you plan to do some serious off-roading, then I would forget the blocks and go with the shackles. I'm not sure if this would apply to Toyotas.

 As far as hub conversions - I don't know if 'Warn' would carry a kit for you. I never changed the hubs on my full-time 4X4. I never had a need to go '2-wheelin'. Mine is not a daily driver, but a bush beast.

There are a lot of additional considerations (and expenses) to lift above 3-inches. Steering system conversions, longer brake cables, pinion angle adjustments, possible drive shaft replacements, fender trimming, extended travel shocks, etc...  - just some ideas.