G56 lube level

[JayB]

My truck hit 10,000 miles so I thought it was time to do some maintainance. I wanted to put synthetic atf in the trans and transfer case so I purchased a 2 1/2 gallon container of Amsoil. My truck was one of the many held back for about a month for what was rumored to be a requirement to add an additional quart of fluid through the top of the trans. As fishy as it sounded I thought I'd remove the fill plug first to see if the trans had extra atf added. The truck was in the garage on a level concrete floor with a catch pan under the trans. When I removed the plug fluid poured out to the tune of 36 ounces. After that I removed the bottom plug and drained the rest of the fluid. I also did the transfer case, it was up to the fill plug but no extra. The refill of both took exactly 2 1/2 gallons, including the extra quart in the trans. I also drained the rear differential, installed a Mag-Hytec cover and refilled with 8 quarts of Mobil 1 75W90 which took me to the top line on the dip stick. Jeff

 

[dhill]

My dealer told me it should have 7 qts. Mine did not, and I added the extra quart after about 700 miles. I parked the truck on a slite hill with the passenger side wheel being about 8"or 10" higher than the drivers side and the extra fluid when in no problem.



Dave

 

[_Hyde]

I helped a friend do his and didn't realize the extra fluid until we pulled the fill plug, which is something I always do on a manual transmission, t-case, axle, etc. I'll elaborate at the end of this post to explain why for those that don't know. After stuffing the plug back in we jacked up the truck on the passenger side under the axles about as far as my jacks would take it. If I remember correctly it had the tires about 6" off of the ground. The tires were fairly new 285/70-17s. This had the level right at the fill plug. We filled it up and its been doing fine ever since and that's been about 2 months or so ago.



Why pull the fill plug first? In this case it lets you know that there is more lube in there than you would have put back in. The main reason is that sometimes fill and drain plugs can be difficult to remove for various reasons. Should it get to the point that you have to drill and use an EZ-out it can be a rather time consuming task even if you have the tools handy. If you drain it and then can't easily remove the fill plug you are now committed to completing the task regardless of weather, resources, time of day, other engagements scheduled close, number of beers you had consumed up to this point and the list goes on and on. If you go after the fill plug first and encounter any challenges you can simply cease and desist and save this task for another time if you so desire. Kind of like the breakfast analogy concerning the chicken and pig; the chicken is involved but the pig is committed. Hope this helps someone out there.



Hyde

 

[Bill Stockard]

Why pull the fill plug first? In this case it lets you know that there is more lube in there than you would have put back in. The main reason is that sometimes fill and drain plugs can be difficult to remove for various reasons. Should it get to the point that you have to drill and use an EZ-out it can be a rather time consuming task even if you have the tools handy. If you drain it and then can't easily remove the fill plug you are now committed to completing the task regardless of weather, resources, time of day, other engagements scheduled close, number of beers you had consumed up to this point and the list goes on and on. If you go after the fill plug first and encounter any challenges you can simply cease and desist and save this task for another time if you so desire. Kind of like the breakfast analogy concerning the chicken and pig; the chicken is involved but the pig is committed. Hope this helps someone out there.



Hyde

I use the same technique. I learned the hard way... been there and it gives you a real "sinking" feeling! It only happens when you are up against a deadline.



Bill

 

[_Hyde]

I use the same technique. I learned the hard way... been there and it gives you a real "sinking" feeling! It only happens when you are up against a deadline.



Well of course, wouldn't be a learning experience otherwise. One of those mistakes one only makes once if a fast learner.



Hyde