4l80e Leak

[gm88]

I have a 1999 c-2500 with the 350 and 4l80e. Last weekend when i was underneath it i noticed some fluid around the rear of the trans and on the rubber trans mount. Ever since i bought the truck 2 and a half years ago there has always been a little bit of dampness around where the yoke goes into the back of the trans, however it never has dripped down onto the trans mount. From what ive been reading on the internets it could be either the rear lube seal or a bearing in there.

If it is the seal (which im assuming is the cheapest/eaisest thing to try to replace first) how hard is it to change. My truck is 2 wheel drive and the yoke is held into the trans with a huge bolt. Is this somthing that comes out easy (w/o destroying parking pawl)? anyone had to do this before?

 

 

Thanks

[8.1HD/ALLISON]

The yoke should slide right out with driveshaft. Remove and replace seal.

[gm88]

@HD8.1/Allison- Thx, My yoke has a hude bolt going through it. Also the driveshaft bolts to the yoke with 4 smaller bolts. Will the yoke slide out of the trans or is the bolt actually attached to somthing in there