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Hummer H2For those who like a little more gleam to their Hummer, the H2 offers a similar rugged look as the H1, but as a lower cost, and with more added features, making it almost a massive luxury SUV.
No problem. It probably goes without saying to change all your fluids. 75w90 synthetic gear oil in the front and rear differentials. Make sure on the front differential you remove the fill plug first.... You don't want to pull the drain plug and then discover the fill plug is seized. For the rear differential, pull the rear cover and I'd recommend the felpro gasket. Under $10 locally at a NAPA store. Very common GM 9.5" rear diff gasket. 5 quarts will do both. Transfer case, dexron 6, same as the transmission. Again remove the fill plug first. And be careful not to over tighten, that rear cover cracks easy. Transmission filter is pretty straightforward GM. Note that although the new filter often comes with another steel encased rubber grommet, it's acceptable to leave the old grommet in and simply push the new filter in. I went ahead and replaced mine, took a blind hole bearing puller.... That thing is super tight in there.
If you invest in a fluid extractor, harbor freight has them under $100, and you'll need an inexpensive air compressor, it will really make life easier. You'll be able to suck the gear oil out of the rear differential without removing the cover. And when you drop the pan for the transmission and replace the filter, you're only changing a portion of what's really in there. I use my fluid extractor every other oil change and pull a gallon of ATF at the fill tube, and replace. Transmission fluid stays looking new. Stick to 5W30 full synthetic oil and a good quality filter. When you're changing your oil filter look just above it where the oil cooler lines bolt onto the oil pan. Another common leak point. Two 10 mm bolts and felpro makes a gasket for that which I've had real good luck with. While you're under it check out the bump stops for the suspension. Pretty common to find them completely gone. Inexpensive and only takes a few minutes to replace.
No problem. It probably goes without saying to change all your fluids. 75w90 synthetic gear oil in the front and rear differentials. Make sure on the front differential you remove the fill plug first.... You don't want to pull the drain plug and then discover the fill plug is seized. For the rear differential, pull the rear cover and I'd recommend the felpro gasket. Under $10 locally at a NAPA store. Very common GM 9.5" rear diff gasket. 5 quarts will do both. Transfer case, dexron 6, same as the transmission. Again remove the fill plug first. And be careful not to over tighten, that rear cover cracks easy. Transmission filter is pretty straightforward GM. Note that although the new filter often comes with another steel encased rubber grommet, it's acceptable to leave the old grommet in and simply push the new filter in. I went ahead and replaced mine, took a blind hole bearing puller.... That thing is super tight in there.
If you invest in a fluid extractor, harbor freight has them under $100, and you'll need an inexpensive air compressor, it will really make life easier. You'll be able to suck the gear oil out of the rear differential without removing the cover. And when you drop the pan for the transmission and replace the filter, you're only changing a portion of what's really in there. I use my fluid extractor every other oil change and pull a gallon of ATF at the fill tube, and replace. Transmission fluid stays looking new. Stick to 5W30 full synthetic oil and a good quality filter. When you're changing your oil filter look just above it where the oil cooler lines bolt onto the oil pan. Another common leak point. Two 10 mm bolts and felpro makes a gasket for that which I've had real good luck with. While you're under it check out the bump stops for the suspension. Pretty common to find them completely gone. Inexpensive and only takes a few minutes to replace.
