Rear End oil.

[Dave 88 LSC]

How do I change or add oil in the rear end?
Taking the cover off would drain the fluid, but how do I add it?

Thanks.

 

[DieselDan]

There is a fill hole in the back of the cover.

 

[Lownslowlsc]

Yup, on the cover near the top. I used a siphon to get the fluid out w/o taking the cover off, just used the fill hole. Then I believe you fill it back up w/ fluid to the bottom of the fill hole.

 

[fastmark1993]

You can take the cover off or like others said there is a check plug on the side of the diff and iirc you just use a 3/8 ratchet. Just syphon it out then put new fluid in I use 75/90 synthetic.

 

[Dave 88 LSC]

Thank you!
Will do sometime this week.

 

[98lincmk7lsc]

you have to throw it in there real quick and then put the cover back on before it all falls out....

 

[Markviiiedrea]

you have to throw it in there real quick and then put the cover back on before it all falls out....

I remember a thread some time ago, maybe on a different forum but he put the oil in a Ziploc then installed the cover with the Ziploc still inside the diff.... I love seeing creative mechanics!