MT82 Manual Transmission Fluid and Rear Axle Fluid Change

[P.R.]

Hey everyone. I've done some extensive searches on this topic and there are a ton of threads about it. However, the one item I can't seem to find a clear answer on is how to accurately check the fill level for both the transmission and differential.

-For the transmission the manual specifies a fill level that is 10mm ± 3mm below the plug opening.
-For the axle the manual states: "The differential gear lubricant level should be within 9mm (0.354 in.) from the fluid level fill plug opening."

One option I'm considering is taking a dipstick and bending it so it can be used to access the fill plug ports since it seems that it would be nearly impossible to visually check these measurements by trying to see into the port.

How have people measured this? I'm open to suggestions

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[atomicpunk]

The 9mm level is the minimum level it should be, you can go above that and be okay.

 

[P.R.]

Fluid change went well. Thanks for the bent wire idea BlackandBlue. Created a quick dipstick with a copper wire and notched 7, 10 and 13mm locations.

 

[Shipey]

Thats a good looking homemade dipstick.

Fluid change went well. Thanks for the bent wire idea BlackandBlue. Created a quick dipstick with a copper wire and notched 7, 10 and 13mm locations.

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Fluid change went well. Thanks for the bent wire idea BlackandBlue. Created a quick dipstick with a copper wire and notched 7, 10 and 13mm locations.

 

[Shipey]

You should make them for sale!

 

[ConspicuousConsumption]

What fluid did you use for the axle?

 

[ctandc72]

Wow - and here I've just been filling it until it trickles out.

 

[FreePenguin]

Wow - and here I've just been filling it until it trickles out.

thats all I do. hasn't blown anything up yet

 

[Shipey]

I used a larger sized paper clip. Easy to bend, easy to see the oil on it.

 

[Rapid Red]

Wow - and here I've just been filling it until it trickles out.

The way I do it, we call that old school works just fine, when it stops the trickle, plug it run it .

I do like the dip stick, slick idea, will make one for the hell of it.. Good work OP

 

[geep81]

How do you like the new fluid? Notice any significant difference?

 

[P.R.]

What fluid did you use for the axle?

I used Castrol SYNTRAX Limited Slip 75W-90 Full Synthetic Gear Oil. It came highly recommended from my friend who is a master mechanic for Porsche and BMWs. He’s tracked a good range of cars and has been through quite a few gear oils and he’s been happy with this one. He’s a tough critic.

I didn’t use the friction modifier and it’s been good so far. No noticeable change, but there was no issue to begin with. I wanted to change it since I was preparing for my first hpde day and I’d never changed it yet.

 

[P.R.]

You should make them for sale!

Lol it’s literally a piece of bent wire that I used wire snips and a hammer to make. Though I did keep tweaking it because the gear oil was so clear it was super hard to see so I flattened the end and kept adding more grooves to try to make the oil stay in place.

 

[ice445]

I used Castrol SYNTRAX Limited Slip 75W-90 Full Synthetic Gear Oil. It came highly recommended from my friend who is a master mechanic for Porsche and BMWs. He’s tracked a good range of cars and has been through quite a few gear oils and he’s been happy with this one. He’s a tough critic.

I didn’t use the friction modifier and it’s been good so far. No noticeable change, but there was no issue to begin with. I wanted to change it since I was preparing for my first hpde day and I’d never changed it yet.

If you have the Torsen the friction modifier is optional, it just lowers the lockup ratio a little to give the street manners that 2% improvement.

 

[Dana Pants]

If you make the drivers side pinch welds between 2 and 2.25 inches higher than the passenger side you can just fill the transmission till fluid starts pouring out. Way easier than a dipstick.

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