What you need depends on what comes with the transmission. if you were able to find a 94-99 transmission, IF it comes with a bellhousing, it should be the right one. a lot of people know the bellhousing is desirable so they will sell separately for more money.
An older trans can be retrofitted with an additional part, the front bearing retainer. You would need one froma 94-99. Around a $75 part last I checked and it should just bolt on with some RTV.
The actual parts you need for the whole conversion:
- external slave bellhousing (if 94-99 transmission does not come with one
- front bearing retainer (if transmission is not a 94-99 model)
- clutch fork (94-99)
- clutch fork pivot ball (94-06)
- clutch fork retainer spring (94-06)
- clutch kit for 94-06 (LUK 05-065 standard or 05-901 heavy duty)
- external slave cylinder (HIGHLY recommend buying the full master/slave cylinder assembly from rockauto which replaces your current master, line, and internal slave with a bolt on, pre-bled part. It is a simple bolt on and go deal.
Of course if you decide to swap, there will be plenty of support here and on the web to help you do it.
The problem is there are no good parts for the internal slave. Hell, the external slave parts aren't that great either but they're super easy to replace when needed. The problem with the internal slave is the bad parts are inside the trans and when they go in the year, that means pulling the transmission again. It is a real PITA. So while you are searching for transmissions, if you can score a late model transmission and especially one with a bellhousing, the parts to buy will be minimal and SO worth the added expense.