Suggestion on removing fill and drain plug on a T5 - JeepForum.com
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post #1 of 9 Old 08-01-2021, 11:12 AM Thread Starter
GA1984Cj7
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Suggestion on removing fill and drain plug on a T5

I am trying to change the transmission oil.
I have a small wrench but I think there must be a better tool. What tool do you use? I believe it is 7/8 square plug. Also I am not sure if it has ever been changed. I am on day two of spraying it with PB Blaster Penetrating can.

Planning on using Valvoline.


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post #2 of 9 Old 08-01-2021, 11:27 AM
Techlight
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If you have a pipe or a jack handle that will slide over the wrench sometimes you can get more leverage that way. They can be a pain because of the location and the skid plate. I've always used a regular wrench and then not overtighten when they go back on.

Just an fyi...your T5 isn't going to like that gear oil. Most folks with the T4/T5 run a syncromesh in them. Search the forum or the net for "jeep T5 what fluid".

,[_____],
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post #3 of 9 Old 08-01-2021, 01:20 PM
LumpyGrits
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X2 on that oil.
BTW, the fill spot has the same plug.

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post #4 of 9 Old 08-01-2021, 01:49 PM Thread Starter
GA1984Cj7
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Thank You! I will return the oil and research on the website; along with trying a pipe with the wrench.


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post #5 of 9 Old 08-01-2021, 02:50 PM
keith460
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It's not 7/8" square but rather 9/16". Use a 9/16" square head or 8 point socket to remove.


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post #6 of 9 Old 08-01-2021, 03:05 PM
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If you have room, this works pretty good as well, and does not allow for any adverse pressure on any points around the plug. Snugs up all the way around for even pressure, so not to damage any of the shoulders on the plug.
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post #7 of 9 Old 08-06-2021, 11:30 AM Thread Starter
GA1984Cj7
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Transmission is completed with the help of the new socket. Also this is the fluid I used for the transmission. I now need some suggestion on my AMC20 (rear). I stripped the Allen Screw. I am trying to change the fluid in it.
I already completed draining & adding new fluid to the 30, and 300.
The screw didn't even budge on the AMC20.
I am currently spraying it with blaster, in preparing to try some extracting tools. I don't even think I have the correct size. Do you know the screw size?




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post #8 of 9 Old 08-06-2021, 12:09 PM
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For the Dana 300 transfer case, I want to say it's a 1/4" allen ...1/2" thread but you might want to verify that. If you stripped it sometimes you can hammer in a similar sized metric or next size up etc to get it to grab. Also, a star bit can sometimes grab a stripped allen. Depends on how bad it's stripped. Plan on changing it once you get it out of course.

What allen screw did you strip? Bottom of transfer case drain plug? If your 84 is stock you should have a Dana 300 transfer case (not a D20)...if you mean you changed the fluid in the front and rear axle...the rear is most likely an AMC20 and the front a Dana 30. A Dana 20 is an earlier model transfer case that was phased out when the Dana 300 was introduced. They do both take standard gear oil. Just want to clarify so you don't get the wrong information on the bolt.

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post #9 of 9 Old 08-07-2021, 09:06 AM Thread Starter
GA1984Cj7
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Got it! Used a little macgyver tool

Used the gator socket and a heater hose extractor remover with the torque wrench.
Thank you for all suggestions! Jeep is almost ready for the road.




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