NISSAN VQ35DE - Manual (Page 5)

Factory Service Manual. If you need the manual for this particular
application, it will be saved in a separate folder on this installation
CD. Here is a picture, showing the difference between the QR and
VQ 6 speed bell-housings:
The VQ bell-housing is shown on the left side, with the QR internals
already installed. The old QR bell-housing is shown on the right. It is
important to check clearances and re-shim the main/input shaft and
gear stacks if necessary. As stated, please use the Factory Service
Manual, if you are have the knowledge/tools to perform this part of
the swap. If you do not, then please consult a local transmission
specialist to take care of this part of your swap.
Once you have your transmission squared away, it’s time to move on
to mounting the transmission to the engine. If your engine was mated
to an automatic transmission, you will need to source a VQ35DE
2002+ 6 speed flywheel and clutch. I recommend using a Jim Wolf
Technology aluminum flywheel, teamed with their 250mm/900Kg
clutch setup. This will yield a stock-like feel, as far as pedal pressure
and feedback are concerned. This combination is good for 450-500
wheel horsepower. Also, make sure to purchase new flywheel bolts
for a 6 speed flywheel. The automatic flex-plate bolts are too short to
be used with a manual transmission flywheel. You should torque
the flywheel bolts to 80ft lbs, and use a few dabs of Red Loc-
Tite. You should torque the pressure plate bolts to 20-22ft lbs,
and use a dab of Red Loc-Tite on those as well. I recommend the