Originally Posted by
M.Abramowicz
Juho was using gear diff

and question is which oil?
I know that trf416 friend was change from AE 2000 to 1000 for
better corner speed, 2000 was not right for him.
Now, why Juho use links at top?
Anyway, great job done by Juho, as usually all wait for setup

You can put the link on either side depending on what bumbsteer you want. With 6degree caster you need to put in on that side to make the link level and have neutral bumbsteer.
I used 50wt AE shock oil in the diff.
Do the stock shafts and blades fit the BD5 SpecR diff?
The blades fit but the ball at the end of the driveshaft is slightly too big. You can either drill the out the outdrives or use a different axle.
I got the Yokomo version of the diff to test now but havent tried it yet. It is quite a bit lighter than the SpecR and in my opinion looks and feels like its better quality.