fill m/t through shifter housing? -
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Unread 12-11-2013, 12:01 PM   #1
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1998 TJ Wrangler 
Join Date: Feb 2012
Location: fredericksburg, va
Posts: 37
fill m/t through shifter housing?

Okay so my (AX-15) manual transmission is due for an oil change and the fill plug is completely rounded out. I thought maybe i could fill it through the back-up lamp switch, but it's significantly lower than the fill plug.

My last idea is to remove the shifter and fill the tranny from the top but the issue now is not knowing how much fluid is actually in the trans. I've always filled it up to where the fluid comes out the fill hole which has always been more than the 3.4Qts it calls for so i'm kind of hesitant to just put the 3.4 in.

Any advice anyone?

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Unread 12-11-2013, 02:07 PM   #2
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1988 XJ Cherokee 
Join Date: Sep 2006
Location: San Jose, CA, Hammerspace
Posts: 5,344
Perfectly doable - put a thin bead of RTV on the shift tower housing before you put the shifter back, make sure the lower shifter lever properly engages the shift rails, and pay attention to the amount you put in! It's easy to over/underfill when pouring fluid in from the top, and both are bad (just in different ways.)

But, I have done this when I don't have a "suction gun" (think pint-capacity syringe) for filling the transmission.
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