Quote:

Quote:

In my A833 (23spline) I run 80-90W gear oil that says it works well in extreme pressure and hypoid type of rear ends. It also says it works well in manual transmission and differentials.

There is usually difficulty in shifting from 2nd to 3rd gear fairly consistently...and it seems to occur more often when the car gets warmed up.

The trans is in my 70 Charger RT with 512RB engine with a new Hurst competition plus shifter kit. Could this problem be caused by the type of fluid?

Or is there another thing that could be causing the problem



If it's GL5 that is your problem.



Well I simply did not know that I was running something that was not compatible with the type of gear setup in my trans.

But...yep it says SAE 80W-90 GL-5,GL-4,GL-3 on the bottle. The trans shifts like butter except from 2nd to 3rd when the trans starts to get warmer the longer I am cruising.

I thought that I was doing a good thing buy running the thicker 80w-90....but I guess all 80W-90 is not created equal.

I am gonna dump that stuff and get some other gear oil in there.