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Old 03-15-2012, 12:11 PM   #1
ambersonne's Avatar
Join Date: Feb 2012
Location: Coral Springs
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Question Changing trans fluid in 2002

In my 2002 manual transmission Wrangler. This will be my first DIY jeep project and I'm a little worried. Any helpful hints on this? I'm starting from scratch, so even the most basic advice would be appreciated.

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Old 03-15-2012, 12:19 PM   #2
Knows a couple things...

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Location: Escondido, Calif.
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Changing your transmission's gear lube is simple and uses the same process as changing your engine oil.

Simply remove the top fill bolt, shown below. Remove that one first just to make sure it will come out before you drain the transmission. Then position a container underneath and remove the drain plug to let it empty. Refill it after replacing the drain plug until the gear lube is to the bottom of the fill hole and reinstall the fill plug.

Several good gear lubes include Redline MTL, Royal Purple Synchromax, and Amsoil Synchromesh... all of which are synthetics. Personally, I would not use Synchromesh from Pennzoil or GM, both of those are mineral based and not everyone likes how the transmission shifts afterwards.
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Old 03-15-2012, 12:39 PM   #3
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You will also need to figure out how you are going to get the fluid into the fill hole. I ended up using some plastic tubing, which worked, but was a bit messy. I know there are some pumps that you can buy, but I had the tubing, so I went with that.

Also, that 17mm allen bit was tough to find. Sears does carry them, but the only one I found was part of a package of a few other bits for around $40. I didn't feel that was worth it, especially since I probably won't ever need any of those again. Fortunately, my dad was able to get one from his work to lend me for the fluid change.
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