You will see a round plug in the yoke it looks like a frost plug. 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. 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. Reply. When I reinstalled the wheels on the axle, I lightly coated the shaft with bearing grease to prevent corrosion. Pop out the plug by inserting a punch in the splined side of the yoke and tap on it with a hammer. 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. If there is leaking, the tail shaft bushing will need replacing with a new seal. Continue with Google. Leaking Transmission fluid can often be more difficult to identify than other types of leaks. Discussion Starter • #1 • Aug 6, 2005. 1 - 15 of 15 Posts. Pull the drive shaft out, remove the u joint so you can work on the yoke that goes into the trans. The service department in Honolulu said: "There is no seal to be replaced, the factory says to replace the entire transmission." The fluid is leaking out of the driveshaft yoke at the u-joint, not down from the rear housing seal. How to fix a leaking transmission in your car, DIY with Scotty Kilmer. The tail shaft of the transmission where the drive shaft exits has been leaking red trans fluid since day one. How to find transmission leaks in your car. Continue with Facebook. Transmission leak repair. 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. 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. The plug will … 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. If you're fairly certain that the drive shaft seals are an unlikely leak point, it could be grease. Yes, fluid will come out of the transmission if the drive shaft is taken out, that is normal. It never had a leak … Join the discussion. Removing the transmission isn't necessary. 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. 1) Check your transmission fluid level, you probably need to add fluid to it. Went on vacation came back and found a puddle of tranny fluid under it. Save Share. 894 Posts . Re: Fluid leaking from rear driveshaft joint May 16 2013, 4:50am 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. (check with the truck running in park) 2) Check the gear oil in the rear axel it could be low also. Slide over to the back of the transmission and inspect the tail shaft seal, which is where the driveshaft spline connects to the transmission. 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. I have had the drivetrain back in my 69 for about a month now. Under it the leaky trans replaced the transmission where the drive shaft exits has been leaking red trans since. Frost plug Yes, fluid will come out of the yoke and tap on with... 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