Getrag overfill?
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Diesel Fan
Joined: Dec 2009
Posts: 45
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Getrag overfill?
simple question for you all i'm sure. I'm wanting to change out gear box fluid and overfill with synchromesh can someone break it down for me? what to look for? anything not to do? what to make sure of? truck has 238k tranny works fine just doing some prevent. maint.
thanks
thanks
Diesel Bomber
Joined: Aug 2009
Posts: 2,124
Likes: 102
From: Lincoln, CA
make sure you drain the oil and refill it by a quart thats about it
your probably going to have to put it in through the top of the shift cover not the side hole, because if you use the side hole, itll pour out before you can overfill it
your probably going to have to put it in through the top of the shift cover not the side hole, because if you use the side hole, itll pour out before you can overfill it
Diesel Wrench
Joined: Aug 2009
Posts: 626
Likes: 16
From: Cheyenne Wy
you can use an elbow on the drain plug to make it a higher fill level. also the shifter is a major pain in the a$$. even said it was and well i experienced it toady. if you do so make sure you have a strong buddy to hold that sucker when putting it back in.
Last edited by 12vcummins96; Apr 21, 2010 at 06:55 PM.
Diesel Bomber
Joined: Aug 2009
Posts: 2,124
Likes: 102
From: Lincoln, CA
its not bad at all on the tranny. its the best thing you can do to help solve the 5th gear lubrication problems
not what i was taught but maybe you know somthing i dont
Diesel Wrench
Joined: Oct 2009
Posts: 603
Likes: 9
From: lebanon, Pa
our trannys seem to be tilted back too far or something like that and it starves some parts of them from getting enough oil.... so you fill them about a quart overfull and that helps to keep everything lubed, thats what i have been told
Diesel Bomber
Joined: Aug 2009
Posts: 2,124
Likes: 102
From: Lincoln, CA
you are correct for MOST transmissions. the getrag is an exception its just a design flaw by getrag
BOMBARDIER
Joined: Mar 2007
Posts: 11,159
Likes: 918
From: Gloucester, VA
Its a proven common practice for the getrag. I know its against basic mech principles but its the best way to make them live.
Diesel Enthusiast
Joined: Apr 2010
Posts: 220
Likes: 13
i believe its because the transmission was engineered without the thought of the angle it sits in the cummins/dodge trucks. that angle makes it impossible to fill it to the proper level without running out of the fill plug so you can use the PTO top bolt cover to fill it. i had to buy a 3 dollar kerosene pump from rural king, it didnt fit in the hole so i took a lighter to the tip of it and shrunk it down until it fit in the PTO bolt hole. cheap and simple i think. it takes about 10 minutes to do it all if you have everything. i used 5 quarts of 5w-30 synthetic from Mobile1.
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