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A43D trans output seal leaks after replacing two seals

I replaced two seals in the tail shaft housing with NAPA seals , and it leaks worse now than before.

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Posted on Jan 02, 2017

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SOURCE: Leaking Rear Transmission Seal

Did you use a motorcraft seal? aftermarket seals are not as good, the factory seal is double lipped as far as I remember.

Posted on Nov 30, 2008

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SOURCE: Rear drive shaft seal leaking

Yes, but you will need to mark the yoke position and exact number of turns to remove the nut or you will change ring and pinion gear lash setting when re-installing it. You can use a large pipe wrench to hold the yoke still while tightening, or get a special tool made for that.

Posted on May 04, 2009

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SOURCE: input shaft seal leaking after replace seal

Firstly, make sure the seal you fitted is the correct one, sounds silly but I have been given the wrong seals by parts people. It pays to check. Next, if you have fitted the seal correctly, and made sure that the seal is in flush with the housing, then it may be that the shaft is worn and may have a groove in it which was caused by the old seal. Pull the shaft out again and check for this groove in the shaft. If it does have the groove, you will need to find and purchase a steel sleeve which is fitted over the worn section of the shaft and ensures a nice clean and tight surface for the new seal to run on, thus stopping the leak.. Here in australia these sleeves are called "speedy Sleeves" and are available from any bearing shop and auto parts stores. The sleeve has a removable step on it which is used to tap the sleeve onto the shaft ( with a small hammer) and is then removed by twisting it sideways with pliers or sidecutters. The sleeve has a scored edge to help with this. Once you have removed the step, carefully clean up the edge with very fine grade rubbing paper ( wet and dry or fine emery cloth) with Oil applied to it to remove any sharp edges BEFORE you refit the shaft into the gearbox. This ensures that the new sleeve does not damage the seal. Re-assemble everything and test drive. As long as the seal is correct and fitted correctly and the sleeve is fitted correctly this will stop the leak. Have fun..

Posted on Oct 31, 2009

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SOURCE: trans fluid leaking rear output

Hi, you don't have to drop the transmission to repair it. To get to this seal, simply remove the drive shaft and access the seal from the back of the trans..

Posted on Feb 12, 2011

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SOURCE: oil leaking trans 1999 chevy S10 replaced torque converter seal leaks at front

ou may need to remove the front pump and replace the seal on the pump and the converter seal as well

Posted on Aug 09, 2012

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Transmission rear seal instalation

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remove the tail shaft . undo the pinion nut with a impact gun and pull the pinion off the shaft. Using a suitable tool pick the seal out of the housing. replace it with a new seal leaving it flush with the housing edge. Check the pinion for a groove where the old seal was running . If there is one ,fit a "speedie" sleeve ( from a bearing shop) or get a new pinion . reinstall the pinion and do up the nut until it touches the pinion on the shaft. Add up to a 1/4 more turn or less . Too much will over tension the spacer between the bearings and cause rapid bearing failure. Refit the tail shaft

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Replaced rear output shaft seal a43d trans still leaking

I am hoping that when you fitted the seals the lip was facing inwards and the seals were square to the face or all the way home against the edge.

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My transmission leaks what should i replace

There are at least 5 places on the Automatic transmission that can over time, and mileage develope fluid leaks. Front converter seal at the front of the transmission,pan gasket in the center,dipstick tube o ring at the center on one side ,speed sensor o ring,and the tail shaft seal at the rear,of the transmission.
Place a flat piece or huge card board,under the engine and transmission,after driving you will see where the fluid,red in color is dripping. Its easier to spot exactly where the leak is comming if you can look under the car,while it is running, The easiest leak is the pan gasket,the dipstick tube, and the speed sensor,then the rear housing tail shaft bushing and seal.
If the front seal(converter seal) is leaking the transmission will need removed,and the seal,and maybe even the front pump bushing Replaced,it would be a good idea to replace the bushing esp if it has high mileage,80,000 or 100,000 miles of use.Change the fluid and the filter,while repareing the leak or leaks.Is a good idea.

Sep 17, 2010 | 1995 Chevrolet Camaro

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I need to replace mt tail shaft seal

Unbolt the drive shaft from the rear differential. Slid the driveshaft yoke out of the transmission tale stock. The seal is right there at the end of the transmission. Take a seal remover or a screw driver and remove the seal, it may be tough getting it out and if you damage it, it's not a problem just don't damage the housing. After it's out take a socket or I use an ABS pipe the same size as your seal and place the seal at the seal seat and tap it in lightly and evenly. put the drive shaft back in tail stock and bolt back onto the differential. Good luck

May 29, 2009 | 2002 Ford Explorer

1 Answer

All of the tranamission fluid is coming out in streams.

i did this on my 2000 f150 to replace the tail shaft bushing and seal (automatic transmission). there was nothing inside that housing to fall out other than tranny fluid. if you're going to replace the seal, i'd suggest replacing the bushing too. it's fairly cheap. when you get the tail shaft housing off, just take it to a tranny shop and have then take the old bushing/seal out the press the new ones in, they'll be less likely to damage the new bushing. hope this helps.

Apr 30, 2009 | 1997 Ford F150 Regular Cab

1 Answer

Output seal leak

Ok Gotcha here we go

  1. Output Shaft has A Brass Bushing in tail shaft housing that supposed to minimize that Play the clearances vary but you R right Shouldn't be a lot of UP-DOWN Play look in to that.
  2. As for the Seal if it got Bent & or the Spring inside it Poped out it Will not Seal
  3. Also If the Yoke Sah A WEAR Channel on it that will Leak Im not sure if they make a SPEEDY SLEVE for yokes or not they do fof HArmonic Ballancers and many other Apps.
  4. Otherwise make sure you have the right seal Look for Part # with a Magnifing Glass the # is on the outside Lip of the seal Strange but TRUE
  5. Again I cant Stress Enough that it HAS TO GO ON STRAIGHT
  6. Also Look for Cracke at the back of thae tail shaft Housing Because if the YOKE is TOO TOO Loose that drive shaft WILL Beat the Seal & Housing into Submision
Other than that It Cant be much more than that . I realy Hope this helps and you can get it takin care of through this, If it Helps PLEASE RATE Me FAIF for this

Jan 31, 2009 | 1999 Ford Crown Victoria

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it sounds like you have a tail shaft seal gone in the transmission it's not a difficult fix if you are handy. Remove the drive shaft and remove the tail stock seal(there are install and removal tools but a hammer and a screwdriver will remove it nicely)then replace with new seal (if you don't have the install tool a 5" long piece of 2x4 and a hammer works BE GENTLE!!!!)and reinstall drive shaft..........these seals are available at your local auto parts store and are usually no more tan $10.00
hope this helps!.........good luck!

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You may have pressure build up in the tranfer case and its going out the weakest spot which is the seals.Who changed the seals?Your transfer case may have a blocked breather if fitted

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