Hey guys,

Going to change the rear dif oil in my truck soon - just did my front because it was leaking. My question is though, I have the 8.25 and the LSD. I'm confused with finding the right oil... I know it requires 75w90 but also the trak-lok additive. The oil I got is synthetic and GL-5 compliant - do you think this means it has the additive in it? I asked the guy at the store and he wasn't sure about the additive I was asking about. It's most like a strange brand to all you guys in the US - it's by Motomaster which is Canadian Tire's specialty brand and I haven't been able to get too much info on it. The GL-5 compliant part has me thinking that it has the additive in it already... do most oil's these days include the additive?
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Second question...

When doing my body lift, the bar you spin to lower the spare tire was bent so I can't put the spare tire back up. Is this a part you can buy a replacement for? I know its awkward but mine is pretty rusted so I don't think I wanna go try to find it off another dak. Right now my spare tire is in the bed but I wanna get back underneath.

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Thanks!

 

It should say with friction additive, I use royal purple when i do mine and it always says on it "With Friction modifier additive"

But i think thats only required for Posi rear ends..

 

When in doubt about the additive, put it in. If it doesn't say on the bottle it likely doesn't. GL-5 does not mean it has it already.

For the spare tire, on mine that rod is held in place by a clip, it's not part of the winch. Try a boneyard. You should be able to find one easily.

 

Cant you get any other brands like penzoil,royal purple,amsoil? Check your manual it should say if you can use gl-5(Im pretty sure you can tho) As far as the spare tire rod. You can find one at a junk yard. Problem is your gonna have a hell of a time getting it out cause its gonna be wedged in there. Its just a piece of rod with a square end on it for the tire iron rods so you could prob make one pretty easy.

 

Thats the problem - a Canadian Tire is the closest thing to me and a NAPA is 2 hours away. Can Tire has a good selection of motor/diesel oils, but practically nothing with gear oil.

This was the only 75w90 I found - There was a royal purple 75w140 but thats it.

And they didn't know what I was talking about the additive.

 

Try your dealer for the additive.

 

Dont forget about walmart and tractor supply(i think u guys have those) They will have more of a selection.

 

That's why it's called crappy tire lol. You can get the oil from a shop fairly cheap, they should sell the correct oil for a LSD diff. For my spare tire rod I cut the bracket off and used a spacer block to get the correct height and bolted it back together, works great, but mine was not so rusty.

 

Walmart has an absolute terrible automotive section - even in the new Supercentre they built 30 mins from my house.

I may just try building my own bar - and I called the stealership and ofcourse they want $24 for a small 500mL bottle.

 

I had to replace my bar cause the end was rounded off and I just went to a couple pick and pulls and found one that was in good shape