the Brain

07 saab97x i5.3 AWD same as trailblazer.

Attempting to change the rear diff. oil I think I have the correct fuild.
?1.Like what doe’s top off only mean?

?2.Should the GM additive Whale sperm be added to oil?

?3.I bought 2 quarts is this enough fuild?

?4. same ?s for the front diff.
Thanks

mountainmanjoe

http://www.vadengmpp.com/owners-manu...-Saab-9-7x.pdf

the Brain

thanks for link to owners manual.

I change the rear end oil in the pontica car every 25K miles, looks like the 97x requires synthetic and the additive. will it be OK to use this stuff I have even though it's none synthetic?

still confused on top off only?TB

mountainmanjoe

Your vehicle needs 75W90 in the front and rear axles. So no, you have the wrong grade of oil there. Put the right stuff in it. And put in the correct additive, I would stick to OEM stuff. Rebuilding these components is really expensive so why take chances. It's only $6 per bottle!
https://www.gmpartsgiant.com/parts/gm-addt-1052358.html

You said you are changing the oil, not topping it off so you can ignore that. The manual should say where to fill up to. Usually it's to the bottom of the fill hole and that will be around 2 quarts, but it sounds like you're doing your whole driveline. Just buy more than your need and return what you don't use.

the Brain

come to think of it I actually purchased this oil for the express van that I somehow messed up the distributor.

I'll get the mobil 1 syn. for the 97x. this rear ends case has a complete different bolt pattern compared to the cars 10 bolt is this a 7.5" 10 bolt? so the new paper gasket was also for the express. the original gasket seams reusable.

Iv'e reassembled the rear cover however there is one extra long bolt however I didn't take note of where it was located.

been looking for a emergency brake cable that if I remember correctly is attached to the diff. w/ this longer bolt but didn't see the cable.

wish I took a image before disassembly. been searching the net couldn't find much but this attached image aurther wrote it's a trailVoy notice there isn't a E cable attached to diff.

Thanks for advice TB

the panhard bar on my 97x is alot lower than this image

mountainmanjoe

It's the wrong oil for that too.

His vehicle is probably jacked up by the frame so the axle is hanging down.

the Brain

so there's no emergency brake cable that's supposed to be attached to the diff. w/ this longer bolt? thanks TB

mountainmanjoe

Usually @ 12 o'clock

Try googling trailblazer. Same platform.

texrex

ha brings back memories about the whale oil.

oilcanhenry

I thought whale oil was banned in the US. Used to be used in oil lamps until kerosene made its debut, back before electricity was used.