Rear Differential & Transfer Case DIY
Thread Starter
CL Community Team
Joined: Apr 2004
Posts: 17,338
Likes: 213
From: Miami, Florida
Tht would probably be the front differential, though some also call it a transfer case. Thing to remember about that one is that it drains ATF. You fill it through the tranny dipstick and eventually it will trickle down to this area and also where the tranny pan is. ALWAYS drain this (about .5 liters of ATF in there) along with the tranny drain plug when doing an ATF drain and flush. Is where the wrench is in this case, the are you were referring to?
Differential and transfer case are interchangeable terms.
Differential and transfer case are interchangeable terms.
Intermediate
Joined: Feb 2007
Posts: 275
Likes: 25
From: New York
Thanks, Lexmex. Yes, it is.
Now it explains the following: I drained the ATF through the drain hole on with the transmission pan and replaced the fluid with Toyota ATF Type T-IV from my local Toyota dealer (4 Qt., $5/pQ) two weeks ago, not knowing there is another box needs to be dained. The old ATF was black and thick. I was so glad that I changed the ATF. But a week after the change I checked the level, only to find the new ATF is dark again, with about 50 miles of driving. I was puzzled. Now this second drain plug at the front explains it all. I will do another ATF change next week - this time taking off both drain plugs!
Many thanks,
Now it explains the following: I drained the ATF through the drain hole on with the transmission pan and replaced the fluid with Toyota ATF Type T-IV from my local Toyota dealer (4 Qt., $5/pQ) two weeks ago, not knowing there is another box needs to be dained. The old ATF was black and thick. I was so glad that I changed the ATF. But a week after the change I checked the level, only to find the new ATF is dark again, with about 50 miles of driving. I was puzzled. Now this second drain plug at the front explains it all. I will do another ATF change next week - this time taking off both drain plugs!
Many thanks,
Driver School Candidate
Joined: Dec 2005
Posts: 33
Likes: 0
From: GA
are 15/16 and 24mm socket the same thing? (15/16 inches is about 23.8 mm)
I tried this with a 15/16 socket .. but it seemed not fitting the fill plug very well ... not sure whether I should use 24mm instead?
Thanks.
I tried this with a 15/16 socket .. but it seemed not fitting the fill plug very well ... not sure whether I should use 24mm instead?
Thanks.
Thread Starter
CL Community Team
Joined: Apr 2004
Posts: 17,338
Likes: 213
From: Miami, Florida
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Pole Position
Joined: Mar 2007
Posts: 362
Likes: 2
From: Moscow, Russia
Not quite. Although they perform very similar functions they are not the same unit. "A transfer case is a part of a four wheel drive system found in four wheel drive and all wheel drive vehicles. The transfer case is connected to the transmission and also to the front and rear axles by means of driveshafts."
Transfer case -- transfers torque between front and back.
Differential -- equalizes torque between left and right axles.
FWD RX (uses U140E) does not have a transfer case, just the front differential.
Transfer case -- transfers torque between front and back.
Differential -- equalizes torque between left and right axles.
FWD RX (uses U140E) does not have a transfer case, just the front differential.
Last edited by Meetya; Jun 12, 2007 at 11:08 PM.
Thread Starter
CL Community Team
Joined: Apr 2004
Posts: 17,338
Likes: 213
From: Miami, Florida
Not quite. Although they perform very similar functions they are not the same unit. "A transfer case is a part of a four wheel drive system found in four wheel drive and all wheel drive vehicles. The transfer case is connected to the transmission and also to the front and rear axles by means of driveshafts."
Transfer case -- transfers torque between front and back.
Differential -- equalizes torque between left and right axles.
FWD RX (uses U140E) does not have a transfer case, just the front differential.
Transfer case -- transfers torque between front and back.
Differential -- equalizes torque between left and right axles.
FWD RX (uses U140E) does not have a transfer case, just the front differential.
Pit Crew
Joined: Apr 2007
Posts: 138
Likes: 40
From: TX
If the reservoir directly behind the transmission fluid pan is correctly called the front differential, why does the chart show that it hold gear oil? We've been saying that it is interconnected with the transmission and drains transmission fluid.
Thread Starter
CL Community Team
Joined: Apr 2004
Posts: 17,338
Likes: 213
From: Miami, Florida
However, the transfer case for those of you with AWD shows transfer oil on its fill plug, and this without a doubt uses 75W90