894 Posts . 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. The service department in Honolulu said: "There is no seal to be replaced, the factory says to replace the entire transmission." Pop out the plug by inserting a punch in the splined side of the yoke and tap on it with a hammer. Removing the transmission isn't necessary. When I reinstalled the wheels on the axle, I lightly coated the shaft with bearing grease to prevent corrosion. Join the discussion. The tail shaft of the transmission where the drive shaft exits has been leaking red trans fluid since day one. 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. Went on vacation came back and found a puddle of tranny fluid under it. Transmission leak repair. Save Share. 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. Reply. I have had the drivetrain back in my 69 for about a month now. 1) Check your transmission fluid level, you probably need to add fluid to it. 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. Slide over to the back of the transmission and inspect the tail shaft seal, which is where the driveshaft spline connects to the transmission. 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. Discussion Starter • #1 • Aug 6, 2005. You will see a round plug in the yoke it looks like a frost plug. (check with the truck running in park) 2) Check the gear oil in the rear axel it could be low also. How to fix a leaking transmission in your car, DIY with Scotty Kilmer. 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. It never had a leak … The fluid is leaking out of the driveshaft yoke at the u-joint, not down from the rear housing seal. If you're fairly certain that the drive shaft seals are an unlikely leak point, it could be grease. I replaced the transmission in a '94 suburban drove it for 2 weeks, no problems. Yes, fluid will come out of the transmission if the drive shaft is taken out, that is normal. Pull the drive shaft out, remove the u joint so you can work on the yoke that goes into the trans. Continue with Google. 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. Continue with Facebook. If there is leaking, the tail shaft bushing will need replacing with a new seal. Leaking Transmission fluid can often be more difficult to identify than other types of leaks. 1 - 15 of 15 Posts. I took the car in to do the electrical harness recall # 18V-754 and to fix the leaky trans. Re: Fluid leaking from rear driveshaft joint May 16 2013, 4:50am How to find transmission leaks in your car. 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. Looks like a frost plug exits has been leaking red trans fluid since day.... Shaft bushing will need replacing with a new seal if the drive shaft out, remove the joint... 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