i need a good one that i can replace the stock one with.

 

how many amps you looking for? there is a 120 amp alt on ebay for pretty cheap.

 

Read my post on this subject, I went to a GM 3-wire,150 amp,00amp @ idle!!

 

Common Toyota swap is to switch to a gm alternator most of them produce high amps at idle and bracket swaps are available and or I believe a later style 22r alt bracket will work there's some info on the web about this gm alts are everywhere and considerably cheap. And truck action beat me to it ^^^

 

check lce engineering

 

Look up tenney alternators if you want something bigger than the gm 3 wire.

 

i'm going to be running around 3000w with just the subs when im done, as well as a fold-down screen and a second battery. will the GM 3wire be able to handle that?

 

I would run. 2 batteries group 31s. And you could always get a higher amperage 3wire alt also. My stock alt has the big three and 1 group 31. Im only running total 1000atts with my highs amp and sub amp (smaller system.) My voltage drop isnt too bad. Keep the revs up and your good.

 

I assume you guys have 22re motors, if so, this will be a easy bolt on for you guys

120amp Jaguar Alternator Upgrade **HOW TOO** - YotaTech Forums

 

Good info ^^ had no idea jag alts would fit ....if your into high watt sound systems . Might consider a gm powerbastards.com 220amp alt and the above mentioned battery's and upgraded cables or get crazy and run two alts like the pro sound guys