Turbo 400 Yoke Leaking, All I know is that the oil leaks out somewhere in the back, TH400 driveshaft yoke fitting problems / fixes Discussion in ' The Hokey Ass Message Board ' started by RustyBolts, Dec 13, 2007. What causes trans fluid to leak through the center of the driveshaft yoke? The leak is not between the yoke and the seal or the seal and the case, the Some 400's use an internal seal on the output shaft to seal the inner surface of the sliding yoke. These transmissions came from the factory with a yoke that has a sheet metal plug Episode 97 of Bad Hombre Garage: my car has been leaking transmission fluid pretty bad, and the speedometer isn't very accurate. Just an o-ring to prevent oil from leaking out the bleed hole in the cup plug that's driven into the The yoke seals up against that o-ring, stopping fluid from reaching the very end/back of the tail housing. without the o-ring and counterbore, the only place i see the yoke leaking would be out the small breather hole in the flat plug in the yoke. i had it built at a local tranny shop, it keeps leaking i checked the pan gasket not coming from there i look up looks like its coming Correct Slip Yoke for Turbo 400 Jump to Latest 14K views 9 replies 6 participants last post by bigblock261 Nov 7, 2019 kbuhagiar Discussion starter. 2K subscribers Subscribed The yoke was not soaked in oil like the last time, but I'll be cleaning it all again, and keep a close eye on it to find the leaking point. Here's a quick, simple, and fairly inexpensive way to fix both turbo 400 trk trans i appreciate the input. What needs replacing? I am working on my 57 with a TH400 tranny. Got the rear housing off and waiting on new bushing, seal, and O ring parts to get here. I like to install the split in the babbit tail housing bushing to the top side even though there's not much fluid that lives back there when parked level. Last fall, I had my Turbo 400 rebuilt and the transmission is performing the way it should. I've battled these tail housing leaks on a How To Find And Fix A Transmission Leak On A TH400! Struggleville2 13. But also worth checking is where the rear seal rides on the yoke, the yoke should be smooth with no grooves worn into it (this goes for So the turbo 400 in my beater GS is leaking through the weep hole of the driveshaft yoke. After the rebuild, I noticed a very minor leak (literally one drop per week) which appeared to be If its leaking from inside the yoke, you may need to replace the O-ring on the output shaft (tailshaft). Thinking about This TH400 Transmission in my 1972 Chevy Suburban is leaking from almost every part that it can leak from. More than likely it's the weep hole in the back of the yoke. hi i recently put a turbo 400 in my 67 chevelle bb with nitrous. could this be We would like to show you a description here but the site won’t allow us.
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