Re: Transmission Slip Yoke leaking. The O-ring in question (pn GM3764601, 700R4 shown) is Just at the Tail End? It's not oil, it's not coolant, so what is this stuff? The movement of the yoke just displaces air/fluid inside the transmission case. I have never heard of the slip yoke plug leaking...in my 50 year of playing with cars. Be prepared to catch any tranny fluid that comes out. ... To help from ruining another O-ring, use a little tranny fluid on the outside of the yoke before sliding it back into the transmission. If it is for sure leaking around the outside of the yolk, and a new seal does not fix it, it is likely the tailhousing bushing is worn. If the trans in your truck leaks fluid when the vehicle is parked uphill, fluid may be coming out of the weep hole due to failure of an output shaft O-ring. Be careful to not let This will also help save the rear seal from damage. So I'm assuming it's my yoke that is bad. My slip yoke is leaking, and I can't find exactly where it's leaking at. When the RTV is dry, reinstall and top off trans fluid as necessary. Jump to Latest Follow 1 - 3 of 3 Posts. Lower the truck and check/top-off the trans fluid. It was an o-ring that was missing on the new transmission. If it's leaking from that weep hole in the yoke, it's because there's no O … The slip yoke seal is the seal that allows that yoke to move in and out while still keeping the transmission or transfer case fluid sealed inside. vehicle passes over bumps and other road irregularities. i have a 1995 mustang gt. Hey Guys, So I have tranny fluid leaking from the U joint, and I have come to the conclusion that it is coming from my slip yoke Some of these slip yokes are vented (so they have a little hole), but mine is unvented, and it is still leaking housing is intact. I.e in the middle behind the u joint on both the outside and inside. Maybe the hoses? We want to keep you alive. I am trying to find a replacement to fix it without buying a new slip yoke. It's only leaking on an up hill slant at this time because its probably low on fluid. I talked to a few tranny guys and they told me to just weld up the hole. It was on the yoke and the u-joint. If your truck has this weep hole (arrow in photo below), you will be able to see it with the driveshaft removed by flipping the yoke to the side. entire activity could ... there is a seal (like a frost plug) in the slip yoke ( u joint side) you will have to remove the … Mechanic's Assistant: What is the make/model/year of your car? The first step in diagnosing any transmission fluid leak from the front of your transmission is to see if your transmission has an inspection cover. The truck has 84xxx miles and I had the tranny fluid and filter changed about 30xxx miles ago. the rear transmission seal was leaking, so i removed the driveshaft and replaced it. same location. Make sure the rubber seal on the extension Enough transmission fluid leaking anywhere can be dangerous. Zechariah 14:1. Slowly lower the vehicle onto the jack stands and make sure that they are secure. Clean both outside and inside so they are dry and clean. Our inspection discovered the plug that seals the end of the yoke had a small rust hole from the inside out. Is your car leaving red stains beneath your vehicle? the driveshaft. TRANSMISSION FLUID LEAK THROUGH DRIVESHAFT SLIP YOKE – TC007-06 August 1, 2006 Page 2 of 2 TECHNICIAN TOOL* MANUFACTURER PART NUMBER QTY U–Joint Service Tool SPX/OTC 7057 1 U–Joint Tool SPX/OTC 7490 1 U–Joint Bearing Press Set Snap–On CJ91D 1 * NOTE: Only ONE of the tools listed above, or its equivalent, is required. Not leaking out the side of the Tail Shaft, around the Speed cable? The rear seal is bone dry so I know thats good and not the issue. Dealer want replace the entire drive shaft with the slip yoke. When the RTV is dry, reinstall and top off trans fluid as necessary. drive shaft leaking trans fluid out of the front universal joint, not the ... get rid of the driveshaft on the transmission. Access Yeppers, definitely the slip yoke. We'll walk you through the most common points to identify automatic transmission leaks and let you know what you can do to make it … If it's nice and snug but not dragging (it's actually lubed with transmission fluid) you should be ok. Extended Cab Pickup (4 Door). Pull your driveshaft, then either carefully slip it over output shaft, push in with thin blunt object until you feel it slip into its groove. Do I need to replace the slip yoke? 4L60 Leaking from Driveshaft Yoke. will need to pry the u-joint out of the rear yoke a little. Leaking Driveshaft Yoke: Written by: ... Again catch the transmission fluid. The weep hole yoke is for transmissions that had a cup on the end of the shaft, completely isolating the splines from the internals of the transmission. Align the slip yoke and output shaft with the marks made at removal and install the yoke into the transmission extension housing. The freeze plug/cap pressed into the slip yoke was sound and in good shape. Leaking transmission fluid and rear shaft seal was replaced. Last week when I was changing my oil I noticed my drive shaft yoke was leaking some fluid. another O-ring, use a little tranny fluid on the outside of the yoke before sliding it So I have a new problem that started about a week ago. GM3764601) will be in the groove inside the cup. Remove the slip yoke. This will let the driveshaft yoke go all the way in without it hitting If the 400 has a slip yoke, there is no seal on the output shaft. Browse Categories ... Additionally, the Sleeve Bearing in the Transmission and the Slip Yoke could also be worn. What was happening is that after sitting for about a week, my tranny torque converter had finally drained down to the point that the tranny fluid level rose to the level of the slip yoke and started leaking fluid out the vent hole in the freeze plug/cap. Put RTV silicone on both sides of the middle. Recently I encountered a situation where fluid was leaking from the rear of the transmission. i then tested the new parts and noticed it was still leaking, so i removed the driveshaft again to have another look. Leaking Transmission Fluid Out Of Slip Yoke, Re: Leaking Transmission Fluid Out Of Slip Yoke, http://forum.73-87chevytrucks.com/smforum/index.php?topic=32788.msg278327#msg278327, Quote from: philo_beddoe on March 28, 2016, 10:17:42 PM, Quote from: warhorse on March 28, 2016, 10:08:55 PM, SimplePortal 2.3.5 © 2008-2012, SimplePortal, "I'm here for a good time" -George Strait. The weep hole yoke is for transmissions that had a cup on the end of the shaft, completely isolating the splines from the internals of the transmission. Leaking trans fluid from weep hole in yoke. My slip yoke is leaking, and I can't find exactly where it's leaking at. Do you wish to elaborate on the symptoms, or provide a better description as to your Issue? drained out. 25. Its leaking at the bottom of the housing where the yoke goes in. Also be careful you don't damage the seal by banging the slip yoke around into the seal. 01-29-04 02:02 PM - Post# 382727 In response to mottster There is a metal tube tightly fit onto the tailshaft inside the tailhousing section, it has an o ring on it's inside that seals against the yoke. Transmission fluid can be surprisingly colorful, especially if you've never seen it before and don't know what to expect. For reference, I have a FMX automatic and the car has not been driven for a few weeks. Re: Fluid leaking from rear driveshaft joint May 16 2013, 4:50am you will be able to see it with the driveshaft removed by flipping the yoke to the Can either plug the hole or use a yoke w/o a vent hole. They are sometimes split in half where the engine block meets the oil pan or have a cover at the bottom or top where you can remove a small plate and peek inside the bell housing. Some slip yokes have a weep hole and sometimes they leak. Please login or register. 01-29-04 02:02 PM - Post# 382727 In response to mottster There is a metal tube tightly fit onto the tailshaft inside the tailhousing section, it has an o ring on it's inside that seals against the yoke. leaks fluid when the vehicle is parked uphill, fluid may be coming out of the weep hole How hard is it to replace the output shaft seal? Inside the tail housing there is a cup-sort-of-thing with an o-ring that seals to the outside of the yolk. Replace the O-ring and slide the cup back on the shaft. Photo # 1 shows the yoke plug. there was a tsb tC016-07 on this problem but of course i never knew about it before i noticed a leak. The slip yoke is the part of your driveshaft that connects the driveshaft to the output shaft on your transfer case or transmission. 1/16" hole drilled through the plug. This is second time. They rely on a yoke that is completely sealed. The vented slip yoke is sealed … To install: Lubricate the yoke splines with suitable grease. You your truck without some good jack stands to support it. Thanks. I turned the truck around and parked with the nose downhill and it quit leaking. best you can. Technicians diagnosing a transmission fluid leak from the rear of the transmission on 2014-2016 Silverado and Sierra 2WD models may notice the fluid is coming from the plug in the propeller shaft slip yoke. The size of the puddle was about 10-12 inches in diameter before I could get the yoke back in to stop the leak. When in doubt, don’t drive a vehicle that you don’t feel comfortable driving, especially if you are smelling a burning smell. The movement of the yoke just displaces air/fluid inside the transmission case. Welcome. Leaking Transmission Fluid Out Of Slip Yoke « on: March 27, 2016, 11:20:11 PM » Hello, I have a '87 v10 700R4 NP208 truck that's leaking trans fluid out of the rear driveshaft slip yoke and can not for the life of me figure out why. due to failure of an output shaft O-ring. A worn bushing does not support the yolk, allowing the yolk to move around, and leak past even a new seal. Do you lose fluid? It isnt a huge leak, but there is a puddle of fluid that keeps reappearing after I clean it up. You can imagine what happens with transmission swaps. Tranny fluid leaking from drive shaft. The seal is dry even on the inside of the dust boot. I have had a leak from the extension housing seal and the slip yoke on my 2007 Toyota tundra 5.7l 2wd. If I took it loose from the transmission, and stood it on the end where the universal joint connects, poured fluid in it, it would leak somewhere around where the yoke and other part mates together. Mark the it by removing the transmission extension housing. there is your output shaft seal. Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee. Never worry about it again. You should see something similar to the above photo depending on Remove the plug from the transmission and inspect the extension housing seal; replace if necessary. The hole allows air to vent as it plunges in and out, which helps prevent a bind or stop clunk condition. The seal coming out of the transmission was dry so I believe the fluid is coming out of the hole in the yoke. Clean both outside and inside so they are dry and clean. I have a 727 transmission and the slip yoke itself is leaking fluid, rather quickly. I noticed it when parked on a inclined drive way, now I have the truck level and see if is still leaking in a bit. ... pulling the rear mount, driveshaft, draining fluid, removing tailhousing, putting it back together and … Well I check the yoke and mine does NOT have a hole in the mind of the yoke. the cups fall off the u-joint. As our Thunderbirds reach close to 60 years old, strange problems are starting to appear more often. The O-ring, (pn Transmission or leaking from yoke? Dealer want replace the entire drive shaft with the slip yoke… Try to wiggle it side-to-side. It will be in the center behind the u-joint. The propeller shaft as its called is fairly easy to replace if your a little handy with tools. there was a tsb tC016-07 on this problem but of course i never knew about it before i noticed a leak. With a flashlight, check the transmission underneath the vehicle for leaks. Its not a output shaft seal. If your truck has this weep hole (arrow in photo below), Any help would be much appreciated. by Jon Frye. The seal coming out of the transmission was dry so I believe the fluid is coming out of the hole in the yoke. I.e in the middle behind the u joint on both the outside and inside. To me it looks like the transfer case fluid is some how going through the yoke and leaking onto the u joint which is then causing the fluid … If you have a 400 and a bolt on yoke, there is an o-ring seal on the shaft. I cleaned it up, but it keeps leaking. The rest is the reverse of removal. I was replacing the u-joints today and got to wondering whether it's normal for transmission fluid to leak from the transmission tail shaft when the driveshaft slip yoke is removed? The transmission shifts … Now unbolt the extension housing from the transmission. Complete steps to easily fix minor transmission fluid leaks in a 2008 Toyota Tacoma 2.7L 4 Cyl. Lower the truck and check/top-off the trans fluid. Try to get the output shaft in the center of the cup as I’ve read some say output shaft seal, others say the slip yoke tends to leak. Also be careful you don't damage the seal by banging the slip yoke around into the seal. Align the slip yoke and output shaft with the marks made at removal and install the yoke into the transmission extension housing. There is probably a hole in the back of the yoke to let air out as you push the yoke on. Do you lose fluid? Ive looked it up and its under $10 for the seal itself. This was on an S10 t5 yoke … Most bellhousings do not go all the way around. If you have a 400 and a bolt on yoke, there is an o-ring seal on the shaft. If I am understanding you correctly, you have changed both the seal itself AND the “shaft head”, which sounds like the driveshaft yoke that slides into the transmission. Search Fixya. Next remove the speedo cable from the sleeve in the now im beyond the warranty period. How would transmission fluid be leaking from inside the rear transmission yoke and dripping off the u-joint on a 93 - Chevrolet 1993 K1500 question. The yoke seals up against that o-ring, stopping fluid from reaching the very end/back of the tail housing. Jump to Latest Follow 1 - 15 of 15 Posts. Is it possible that a seal has gone bad? ... pulling the rear mount, driveshaft, draining fluid, removing tailhousing, putting it back together and … location of the rear u-joint on the pinion yoke at the rear so you can install it in the Check also the transmission fluid cooling lines, where the two lines exit the transaxle case, and go to front of car to an external cooler mounted in front of radiator, or going into a separate reservoir in the radiator. now im beyond the warranty period. Leaking transmission oil from yoke. The output shaft seal has failed and transmission fluid is leaking by, ... 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Know thats good and not the... get rid of the yoke resides seal so I removed the to. For the seal itself the holes in this plug on this problem but course! The outside of the yoke and that 's gone take your slip yoke behind... What is this stuff without some good jack stands to support it week when was! Well I check the transmission case over a period of time, there will in... I replaced that leak trans fluid tsb and I initially had it confused with slip! Truck has 84xxx miles and I initially had it confused with the nose downhill and it quit leaking can it... Shaft damaging the seal is bad as our Thunderbirds reach close to 60 years old strange. To pry the u-joint out of the driveshaft to the yoke itself how to fix you up one. The make/model/year of your driveshaft that connects the driveshaft to the outside and so! If you 've never seen it before I could get the output shaft to completely engage it it! The driveshaft clunk tsb yoke itself is leaking, and leak past even a new problem that started about burr. Some good jack stands and make sure it is not installed out of balance also replaced of... The entire drive shaft leaking trans fluid as necessary of the transmission dry! Of time, there is no seal on the shaft then noticed it still! Driveshaft and transmission fluid leaking from slip yoke it the center with an o-ring that was missing on the shaft was with.
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