|
It depends on what ratio you are going from. If you have 3.08 or numericaly lower ratio i believe you have a 2 series carrier if you have 3.23 or numerical higher you should have a 3 series carrier. Check the RPO codes if you are uncertian if your current ratio. You need to know this prior to ordering gears, this way you will know which 3.73's to order, those for a 2 series carrier or a 3 series.
I would suggest searching on-line for some good prces on Motive gears, they are moderatly priced and run rather quiet with minimal whine compaired to say Richmonds, Genuine GM gears IMO are the best (GM buys from AAM American Axle Company) you can find these gears at the dealer for a very high price or some places on line. Ebay is a good place to look for new and used GM OEM AAM gear sets. There is nothing wrong with buying a used set but once a gear set is used it gets a pattern worn in them, it is quite difficult to set them up exactly how they formerly meshed, this could result in some whine.
As for what else you need, you will probably want to invest in the master install kit and just replace all the bearings seals and races, your doing this job once you may as well get all the new carrier bearings, pinion bearings, axle seals, pinion seal. the master kit should also contain gear marking compound, crush collar, ring gear bolts, carrier shims, pinion shims and loctite. IMO a worthwhile investment. You also have to consider reclibrating the spedo, depending on what year car you have it can be done through nylon spedo gears on 3rd gens to having the PCM recalibrated on 4th gens
|