S10 Front Differential Oil Leak - Car Troubleshooting


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S10 Front Differential Oil Leak

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JR66
User

Nov 15, 2009, 5:59 PM

Post #1 of 4 (7109 views)

S10 Front Differential Oil Leak	Sign In

Does anyone have the procedure to change the front differential pinion seal on a 2000 Chevrolet S10 V6 4X4 pickup? I put it in 4 whl drive for the 1st time in quite a while and the seal started leaking a lot after that. I think because the front driveshaft hadn't turned in a long time the seal hardened or some rust formed. Anyway now I get a puddle under the car overnight and I'm reluctant to drive it too far for fear of running the differential dry. It took quite a bit of oil when I filled it. If I take out the frt driveshaft what do I have to do to pull the pinion out and change the seal? Can I do it with the differential and axles in place?

Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Nov 16, 2009, 6:37 PM

Post #2 of 4 (7090 views)

Re: S10 Front Differential Oil Leak	Sign In

Can I do it with the differential and axles in place?
Yes.
Loren
SW Washington

re-tired
Veteran / Moderator
re-tired profile image

Nov 16, 2009, 9:36 PM

Post #3 of 4 (7084 views)

Re: S10 Front Differential Oil Leak	Sign In

Loren is correct . However, the job is much easier with a airgun & impact socket. Your dealing with a high torqued nut plus years of rust. The procedure is the same either with breaker bar or airgun. Undo drive shaft from yoke . Scratch or paint a ref line across nut and yoke . Undo nut,slide yoke off . Remove seal , a large screwdiver will do. Cleanup yoke where seal rides. CAREFULLY tap new seal in place. Put a little clean lube on yoke and install yoke and nut. Tighten nut till ref line aligns . Re-install shaft . Refill lube . Have your fav beverage or pay the shop. And they will have one for you.

LIFE'S SHORT GO FISH

(This post was edited by re-tired on Nov 16, 2009, 9:38 PM)

JR66
User

Nov 17, 2009, 5:36 AM

Post #4 of 4 (7079 views)

Re: S10 Front Differential Oil Leak	Sign In

Many thanks to both you and Loren for your advice. I have air tools and am used to rust. My main concern was whether or not I had to remove the differential. That would make it a really big job. Now that I know I can replace the seal with differential in place I'll give it a go.

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