I am thinking of ordering 3.73's from someone. Is this enough to install because I have heard that you need something to install them. I don't want to take it somewhere and not be able to have them installed.

 

I just ordered my ring and pinion. From what LMPerformance told me, you need ring and pinion, Power programmer, and a new differential. Mine is a 2001 Automatic. I dont know if yours and mine are the same but they said mine came with 2.73's and it needs a series 3 differential to run 3.73's. The programmer is ordered because with those gears in it. the car thinks they are still stock and with a full rotation of the wheels, youll lose your ABS and your speedo will be off. Im looking at about 800 to get a complete rearend gear set and working nicely. Another tip incase ya didnt know......After its installed DO NOT drive it hard or **** will break. Drive like Ms. Daisy for a good two weeks and then let her lose.


^^^^All of this is what ive been told by family friends and places like SLP and LM so im guessing they are right.

 

Actually since you already have 3.23 gears then you should already have a 3 series carrier so all you need is the ring and pinion and installation kit. As for the speedometer being off you shouldn't need a programmer because its not computer controlled in a '94. If your buying used gears then you dont have to worry about taking it easy on them but if you use new gears then there is a specific way to break them in.

From differentials.com :

All new gear sets require a break-in period to prevent damage from overheating. After driving the first 15 or 20 miles you must let the differential cool for 30-40 minutes before proceeding. Drive 500 easy miles before towing. Tow for very short distances (less than 15 miles) and let the differential cool before continuing during the first 45 towing miles. Change the gear oil after the first 500 miles. This will remove any metal particles or phosphorus coating that has come from the new gear set.