Issue with Front nismo diff

[cobrAA]

My mechanic is having trouble figuring out where to trim the diff. The problem is the diff will fit int he case but it wont spin, it lock when the diff is in position so it must not make the good contact but he can't figure where it was to be removed because it's not knocking anywhere.

I found these information on the net but it doesn't seems to help me much.. can someone shed some light please ? and/or translate the instruction from nismo in japanese ?

I'm willing to pay for the information, we really need to get that pan installed so we can proceed with the rebuild.

Thanks !

http://www.gtrpwr.com/showthread.php?t=6675

[99_SI]

Issue with Front nismo diff

Did he install the pinion as we'll or just the carrier?

[Bruizer]

Is the diff for the right car? Has he installed a different before? Your buddy may need to talk with a more experienced mechanic. Most aftermarket diffs need some meat removed from the housing. The is giken took hours to install before of this same problem :S what does Nissan/nismo say?

[99_SI]

Judging by the pictures you DO need to trim the inside of the case. Make sure back lash is what the picture says, step 9 -0.13-0.18mm!