Mine is a 2000 4WD, 4L60E,RPO G80, with 4 buttoms in the cluster (¡¡¡and the TC should then be serviced with a different fluid¡¡¡).
Usually is difficult to find here in Chile the same exact fluids (engine oil, Dexron, etc.) that are required for a service to engine, axes, TC, stearing pump, brakes, radiatorand the auto gearbox, so the brandsare also a point. Even greasing points should be included.
Any of you have a table with the intervals, type/brand of fluids, quantity, location of drainages, etc, for the 4WD Blazer servicing?.
I know that are controversial items as is Dexcool, but a guide in these servicing tips may be helpful.
You can advance some few of the required and the full version will arise later.
Thanks.

 

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Your owners manual should give you service intervals. If you do not have an owners manual, check out MyGMLink.com. Here is a hard link to the 2000 Blazer manual. Also, you may want to invest in a Haynes or Chiltons manual. For the price, they cover things like this quite well. You should be able to find a source in the US that will ship down to you...

Your front diff probably won't have a drain, but the old fluid can be sucked out of the fill plug with a simple hand pump. The fill plug should be on the front passenger side of the diff between the bolts holding the two halves together and the bolts holding the passenger side axle shaft onto the differential case. The rear diff you will need to pull the cover to drain and the fill plug is located on the passenger side and will take a square drive socket extension (3/8 I think). The manual details the fluid required as well as the maintenance schedule. So long as you use a GL-5 rated 80w90 (or 75w90 synthetic) gear oil, you should be fine. You'll need 1.75qts (1.7L) for the 7.625 rear axle and 1.3qts (1.2L) for the front axle.

For the transfer case, GM Autotrak 2 fluid is required due to the fact that your transfer case has the auto4wd option. There is a fill and drain plug located on the back of the transfer case. Pull the fill plug (upper) and then pull the drain (lower). Transfer case shouldn't need changing until 50-75k miles depending on operating conditions. You'll need 2.4qts (2.3L) of fluid for the transfer case.

For the transmission, regular Dexron-III fluid is required. Drop the pan, change the filter, reinstall the pan, and refill with fluid. This will swap ~6 quarts of the almost 12 quart dry capacity of the transmission. If you want more, you can pull one of the transmission cooler lines on the passenger side of the radiator (check flow direction by starting the engine and then shutting it down very quickly) and extending it to a bucket with a section of soft hose. Start the truck and let it drain 3-4 quarts. Stop it and refill with fresh fluid. Repeat until the fluid coming out of the transmission is the same color as the fluid you are pouring in. This is considered a DIY flush and may take as much as 18 quarts of fluid to get clean fluid back out. I would not recommend this if the transmission has not been serviced in over 75k miles. Service intervals for the transmission are generally 50k miles for normal use and can be as short as 20k miles for severe use (dust, high temps, high loads, etc).

On the Cooling system, any G05 coolant would be a better choice than the current Dexcool. Zerex has an excellent G05 coolant, but I'm not sure if you can get that down there... If you are not having problems with the cooling system (i.e. junk in the overflow tank or on the radiator cap and it has been serviced within the last 5 years, I wouldn't mess with it. But if you do choose to service the cooling system, you will need 1.5 gallons of coolant concentrate and a few gallons of distilled water. Run a search on how to do a cooling system flush. You'll also want to replace the thermostat and radiator cap during the process as it is easy while you already have the system drained.

That should cover the gambit for you. Search for more answers and ask if you cannot find what you need. But again, a Haynes or Chiltons manual will give you some good pointers on completing these routine maintenance items...

 

Thanks, I'll try to put the info in a sheet.