cRiPpLe_rOoStEr
We don't ride to provide a good story for the rice
Get the fuckin supercharger 


Why not do a 5.4 swap?
I read your other thread, for 33.3" tires, I think you need at least 4.11 gears regardless.I understand the gears, and eventually transmission and all. I see all of that needing upgrading at some point. The thing about gears is I wouldn't go to 4.11's I don't believe. With the extra power I think I wouldn't want that ratio, maybe 3.73, and I don't think I can warrant the cost of the gears with that small of a change until they were to eventually break
If you're running bigger tires get gears first.
What gears do you have now?
I am running 35's with my stock 3.73 and I think it is fine, still enough power, and I didn't notice much of a drop in MPG.
I say for 33.3's you should be fine with 3.73, if you have 3.55'it might be pushing it, but if you have gone this long, why change now, go for the supercharger
A supercharger is $6-7k which to me really isnt worth it, especially on a higher mileage truck.
Gears will run around $500-600 installed per axle. I had 4.10's put in a Mustang I had and they made a huge difference compared to the factory 2.73's.
I actually considered buying a supercharger for my truck when I sold my Mustang but then I saw the price and decided to pay off bills instead.
A rebuild kit for the 8.8 limited slip is cheap. I bought one for my Mustang and the clutch kit was like $50 or less. Why would you replace the whole unit?
I learned from my mistakes when it comes to putting money into vehicles and now I just do practical mods, if any at all. I do plan on leveling mine since it needs struts and shocks anyway and I plan on getting slightly bigger tires because mine will need replacing soon. I plan on keeping my truck quite a while but dont plan on spending a ton of money modding it.
I had around $20k into my Mustang over the 5 years I owned it and only put about 6k miles on it and sold it for $4100 just to get rid of it.