What type of vehicle are we dealing with, and who's SYE?
On my YJ, I used an AA SYE (p/n# 50-7906). In order for the t-case to shift correctly, I had to cut 1/2" off the shift rail. Below is a portion of the AA SYE install guide.
NOTE: On some NP231 transfer cases, the shift rail must be shortened.
This shift rail protrudes out of the transfer case and goes into the
tailhousing. The new tailhousing has a pocket depth of 1.125".
Shift your transfer case into 4WD so the shift rod is protruding the
furthest out of the transfer case. If this shifter rod protrudes more than
1" out of the back side of the transfer case, then the shift rail must be
shortened. Ideally the shift rod should protrude exactly 1".
Transfer cases that will normally require this rail to be shortened
Using a hack saw or cutoff wheel (and safety glasses), trim the shift
rail shaft so that it protrudes only 1".
Last edited by Stonefly; 03-19-2006 at 04:54 PM.