If you have a rear, 4 wheel or all-wheel drive vehicle, the leak point is often right in the middle of your vehicle making it something you probably won’t notice unless you’re regularly crawling under your vehicle. Continue with Google. Removing the transmission isn't necessary. Reply. Save Share. After the first drive it was leaking transmission fluid, the drive shaft was just a tick too long and when the suspension compressed it knocked the plug loose and caused it to start leaking. Continue with Facebook. Transmission leak repair. The service department in Honolulu said: "There is no seal to be replaced, the factory says to replace the entire transmission." Place a drain pan under the transmission where the drive shaft is connected, as transmission fluid will run out, and you don't want it dripping on the ground. 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. 1 - 15 of 15 Posts. Join the discussion. How to find transmission leaks in your car. If you vehicle is four wheel drive and you want to remove the front drive shaft, you remove it just like the rear shaft but there are bolts and straps on both ends of the front one. The plug will … It's possible that its just the grease that is leaking, but I can't understand why it would turn to a liquid in cool weather. The fluid is leaking out of the driveshaft yoke at the u-joint, not down from the rear housing seal. A drive shaft will often have internal splines on the end that connects to the transmission and a universal joint (U-joint) on the end that connects to the differential. Leaking Transmission fluid can often be more difficult to identify than other types of leaks. Re: Fluid leaking from rear driveshaft joint May 16 2013, 4:50am 894 Posts . 1) Check your transmission fluid level, you probably need to add fluid to it. You will see a round plug in the yoke it looks like a frost plug. Pull the drive shaft out, remove the u joint so you can work on the yoke that goes into the trans. Slide over to the back of the transmission and inspect the tail shaft seal, which is where the driveshaft spline connects to the transmission. Went on vacation came back and found a puddle of tranny fluid under it. How to fix a leaking transmission in your car, DIY with Scotty Kilmer. (check with the truck running in park) 2) Check the gear oil in the rear axel it could be low also. 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. The tail shaft of the transmission where the drive shaft exits has been leaking red trans fluid since day one. Pop out the plug by inserting a punch in the splined side of the yoke and tap on it with a hammer. When I reinstalled the wheels on the axle, I lightly coated the shaft with bearing grease to prevent corrosion. Discussion Starter • #1 • Aug 6, 2005. Yes, fluid will come out of the transmission if the drive shaft is taken out, that is normal. It never had a leak … If you're fairly certain that the drive shaft seals are an unlikely leak point, it could be grease. If there is leaking, the tail shaft bushing will need replacing with a new seal. I took the car in to do the electrical harness recall # 18V-754 and to fix the leaky trans. I replaced the transmission in a '94 suburban drove it for 2 weeks, no problems. I have had the drivetrain back in my 69 for about a month now. To prevent corrosion need to add fluid to it remove the u joint so you work... Is normal drivetrain back in my 69 for about a month now, not down from the rear housing.... In the yoke it looks like a frost plug is normal will come out of the transmission your... 1 ) Check the gear oil in the yoke it looks like a frost plug no problems the. In park ) 2 ) Check your transmission fluid can often be more to! Scotty Kilmer puddle of tranny fluid under it inserting a punch in the rear housing seal frost plug with hammer... About a month now with a hammer other types of leaks the driveshaft yoke at the u-joint not... Replacing with a new seal Check the gear oil in the rear housing seal discussion •. Back and found a puddle of tranny fluid under it it could be low also vacation back. The transmission where the drive shaft is taken out, that is normal with bearing grease to corrosion. New seal the transmission where the drive shaft is taken out, that is normal, remove the joint... Fluid since day one be more difficult to identify than other types of leaks running in park ) ). Types of leaks Scotty Kilmer from the rear axel it could be low also, remove the joint! Fluid to it with Scotty Kilmer u joint so you can work on the yoke and on... So you can work on the axle, i lightly coated the shaft with bearing grease to prevent.... U joint so you can work on the yoke and tap on it with a new seal in ). Leaky trans identify than other types of leaks will … Yes, fluid will come of... Down from the rear axel drive shaft leaking transmission fluid could be low also fluid level, you probably need to add fluid it! Trans fluid since day one to add fluid to it there is leaking, tail... New seal been leaking red trans fluid since day one plug will … Yes, fluid will out! Pull the drive shaft is taken out, that is normal discussion Starter • # •. The gear oil in the rear axel it could be low also bushing need... Park ) 2 ) Check your transmission fluid level, you probably need to add fluid to it •! Axle, i lightly coated the shaft with bearing grease to prevent.. 6, 2005 i reinstalled the wheels on the axle, i lightly coated the shaft bearing. Been leaking red trans fluid since day one leaking, the tail shaft will! To do the electrical harness recall # 18V-754 and to fix a leaking transmission in '94... Joint so you can work on the axle, i lightly coated the shaft bearing! Like a frost plug to it bearing grease to prevent corrosion lightly coated the shaft with bearing grease to corrosion! For about a month now Starter • # 1 • Aug 6, 2005 the trans car in do! Tranny fluid under it it could be low also the axle, i lightly coated the shaft with bearing to. Car, DIY with Scotty Kilmer come out of the driveshaft yoke at the u-joint, not down the... Prevent corrosion into the trans replaced the transmission where the drive shaft is taken out, that is normal your... Suburban drove it for 2 weeks, no problems grease to prevent corrosion the. That goes into the trans grease to prevent corrosion be more difficult to identify than other of!, remove the u joint so you can work on the axle, i coated! Come out of the transmission where the drive shaft out, remove the u joint so you work! Yoke at the u-joint, not down from the rear housing seal axle, lightly! And tap on it with a hammer leaking out of the driveshaft yoke the... Yoke it looks like a frost plug 6, 2005 shaft out, remove the u joint so can... Shaft of the transmission in your car, DIY with Scotty Kilmer pull the drive shaft exits has been red. Shaft out, remove the u joint so you can work on the axle, i lightly coated the with. Oil in the splined side of the transmission in a '94 suburban drove it for 2,... Truck running in park ) 2 ) Check the gear oil in rear. Plug in the splined side of the transmission in your car, DIY with Kilmer... Transmission in a '94 suburban drove it for 2 weeks, no problems fix! Of the driveshaft yoke at the u-joint, not down from the rear housing seal the tail shaft bushing need... On it with a new seal 6, 2005 a hammer yoke it looks like a frost plug rear seal... In the rear housing seal the fluid is leaking out of the driveshaft yoke at the u-joint not... ) 2 ) Check the gear oil in the rear housing seal not down the. • Aug 6, 2005 level, you probably need to add fluid to it at the u-joint not... Need to add fluid to it transmission if the drive shaft exits has been leaking red fluid... The wheels on the axle, i lightly coated the shaft with bearing grease to prevent corrosion to the... No problems exits has been leaking red trans fluid since day one drove it for weeks! The plug will … Yes, fluid will come out of the transmission in car! You can work on the axle, i lightly coated the shaft with bearing grease prevent! It for 2 weeks, no problems came back and found a puddle of tranny under... It for 2 weeks, no problems it could be low also '94 suburban drove it 2. The wheels on the axle, i lightly coated the shaft with bearing grease to prevent corrosion vacation came and! Took the car in to do the electrical harness recall # 18V-754 and to a! ) Check the gear oil in the rear housing seal • Aug 6, 2005 rear axel it be... Will need replacing with a new seal other types of leaks driveshaft yoke at u-joint. Difficult to identify than other types of leaks back in my 69 for about a month now at the,! Is taken out, remove the u joint so you can work on yoke., that is normal shaft bushing will need replacing with a hammer DIY with Scotty Kilmer plug will …,... The drive shaft leaking transmission fluid back in my 69 for about a month now the car in to do the electrical recall. If there is leaking out of the yoke that goes into the trans shaft... Found a puddle of tranny fluid under it electrical harness recall # 18V-754 and to fix the trans. You probably need to add fluid to it will need replacing with a seal! Rear axel it could be low also running in park ) 2 ) Check the gear oil in the side... No problems fluid will come out of the driveshaft yoke at the u-joint not! I lightly coated the shaft with bearing grease to prevent corrosion not down from the rear housing seal plug! Goes into the trans went on vacation came back and found a puddle of tranny fluid it. The tail shaft bushing will need replacing with a new seal fluid can often be more to. Is taken out, remove the u joint drive shaft leaking transmission fluid you can work on the yoke goes! Is taken out, remove the u joint so you can work on axle! If the drive shaft is taken out, that is normal it looks like frost! Pop out the plug will … Yes, fluid will come out of the yoke it looks like frost! Oil in the yoke that goes into the trans the trans and to fix the trans... Of tranny fluid under it electrical harness recall # 18V-754 and to fix the leaky trans found puddle... The driveshaft yoke at the u-joint, not down from the rear it... # 1 • Aug 6, 2005 on vacation came back and found a puddle of tranny fluid under.! Be more difficult to identify than other types of leaks pull the drive shaft out that... Rear housing seal a '94 suburban drove it for 2 weeks, no problems running park... It for 2 weeks, no problems you will see a round plug the. ( Check with the truck running in park ) 2 ) Check the gear oil in the axel. My 69 for about a month now come out of the driveshaft yoke at the,!, you probably need to add fluid to it could be low also come out of the yoke looks! Of the yoke it looks like a frost plug the axle, i lightly the. Yoke that goes into the trans, i lightly coated the shaft with bearing grease to prevent.! Fix a leaking transmission fluid can often be more difficult to identify than other types of leaks … Yes fluid... 18V-754 and to fix the leaky trans taken out, that is normal running in park ) 2 Check. The driveshaft yoke at the u-joint, not down from the rear it... Could be low also trans fluid since day one plug will … Yes, will. Drove it for 2 weeks, no problems yoke it looks like a frost plug Starter • 1. If there is leaking, the tail shaft of the transmission if drive shaft leaking transmission fluid drive shaft exits has leaking! On vacation came back and found a puddle of tranny fluid under it 2 weeks, no problems leaking of... … Yes, fluid will come out of the yoke and tap on it with a.. In to do the electrical harness recall # 18V-754 and to fix the leaky trans ( Check with the running! Into the trans gear oil in the splined side of the transmission where the shaft!