Just had a new brand spanker gearbox installed last week, a late model R33 Pull type, into my early R32 GTR.
Was apparently easy as pie to swap the new box from pull, back to push.
Also at the time had the following done:
1. check & reseal transfer case, and attessa actuator, new transfer fluid (Motul synth ATF)
2. rebuilt tailshaft, rebuilt centre bearing and new CV at the rear, rebalance
3. rebuilt driveshaft from transfer case to front diff (2 joints)
4. new diff oil (Motul Gear Competition 75W140)
5. Castrol Syntrax 75W90 in the gearbox, as run-in for 500kms, then switching to Motul Gear 300 75W90
My question is this - when I first got the car, the rear diff would be clunky when you did low-speed high-lock driving - eg carparks.
I have not recently noticed this as much. Note that I have always had synth fluids in the gears and diffs and are changed regularly (less than 10,000kms).
Now that all the drivetrain is rebuilt or new, it seems to be clunky alot more. Is this a "good thing" in that it is all now tight? I'm guessing so.
The new box feels nice, but is still notchy. I guess that's what you get with an old agricultural box like these!
cheers