rear differential

Trying to find out the spline count on my rear axle a 2004 titan 4x4 off road with big tow and lock diff. I believe it's all 32 but as many of us know info on these is hard to find and dealers only want to sell you a 5k dollar new rear. Please and thank you for any thoughts. R.

Can I use a Yukon 32 spline for my grenaded rear end? 04 4x4OffRoad w tow pkg. I hear it has like a 24 or 27?, and that they're not really made anymore??? What all is compatible and recommendations, advice greatly appreciated. I ordered a Yukon ring and pinion 32 spline kit, a master rebuild kit...