Been losing my mind finding the fill plug but finally found it; it's located on driver side of the diff. Now the issue is it is blocked from access by the InLine Pro mount adaptor. There are 2 bolts a lower and upper holding a hanger adaptor in place, lower is easily enough removed but upper is blocked from access by the rear subframe's diff mount. Thought I might be able to swing it out so as to get to the plug but no doing. Anybody with experience know a solution? What's the official methodology? Certainly people with this kit have been changing their diff fluid, no?

 

Can u post pics of the issue?

 

If you are standing behind the car Its under the bracket that holds the diff up on the left side of the diff.

 

you change it before install, if you want to change it after install, you will have to take it apart to get to it.

 

fluid is good for ~100k miles

 

Agreed, the fluid should last a very long time. Change it before it goes in or you will have to take out the whole assembly.

On a seperate note, does anyone with the inline pro diff kit still get the axle "pop" from the spindle nut? I do and I am not sure why.

 

Axle pop?? Getting a constant scraping with every revolution of axle on pax side and constantly having to retorque nut. Have changed the bearing twice now. Any ideas?

 

Anybody know the capacity of the system? - Perhaps it can be flushed and filled with vehicle on an angle?? What's in there originally & what's recommended? One of the things we have always done as a matter of course is change out to RedLine diff and Tranny fluids in all the cars we prep for track/road racing and it has made huge differences even on new BMWs and Porsches. This is TT 300ZX diff, correct?

 

r32 diff

 

It is the non twin-turbo (NA) 300zx differential. R200 or r32 diff. Your bearing may be turning in the hub that is why you are getting the sound.