Trouble finding u joints

[black94pathfinder]

I am having a awful hard time finding u joints for my 94 2wd. I have searched high and low and for what ever reason can not find any that will fit. the ones I am finding are to small. rough measurements of the ones on the truck are 1 1/8 cap size and 3 1/8 from end to end. the outside of the caps reads TORR 83H NSK. I've tried cross referencing to no avail. I found a potential on moogs wesite based off of the measurements but dont want to spend the money and they be wrong. Any and all advice would be welcomed. If it is just easier to replace the entire shaft i will but dont want to if i dont have to. Thank you for your time 

[Slartibartfast]

Nissanpartsdeal shows 37126-C9425, replaced by 37126-VB925. The 4WD diagram shows the same thing for the rear shaft. I checked for 2WD pickup, on the off chance they had some weird smaller version, and it shows the same joint. You might be able to find a listing for one of those PNs that has dimensions to check against what's in it.

[level9]

Having completely disassembled my Pathfinder, hand restoring each part and reassembling it - out of everything - this is not a job I would do again.
I'd pay just about any amount of money to have someone else do it.

I ran into several issues. For one, there are different drive shafts noted in the FSM and the drive shaft was not marked as to which it was which is why the aftermarket parts catalogs listed different sizes. If you go the aftermarket route, I suggest buying all of the recommended sizes, see which one fits and return the rest (use someone you can do easy returns with eg. Amazon).

Next problem was removing the u-joints. The ears on the shaft are not square - they are tapered. I had a hell of a time getting it level on a press, having to purchase various sized square steel bars which I bent into various shapes in order to shim to shaft level and (sort of) stable. The amount of force required to get those u-joints to break free was also something insane, like 10+ tons. When I finally managed to break them free, the noise was so loud it sent the wife flying into the garage to confirm I was still alive. This is not for lack of many days soaking in penetrant oil and even taking a torch to it repeatedly.

The next issue was the center carrier bearing - it was completely shredded and in need of replacement.
The bolt holding the flange on the opposite side of the bearing to the front drive shaft was also stuck on there. I own 3 impact wrenches, including the highest breakaway torque in electric and the highest available for an air compressor. None of those would break the bolt loose. I ended up having to purchase a special tool (pinion yoke wrench), bolted it to the drive shaft, attached a large breaker bar to that, had the wife stand on it while I got another large breaker bar on the bolt itself. I also put my left foot on the pinion bar with the wife, so she wouldn't go flying, then we locked arms and I pushed as hard as I possibly could with my right foot on the breaker bar. That broke it loose.

If you decide to try and DIY this, just be prepared for having to take it in to someone else for help. Also get the FSM and absolutely follow the related procedures (grease, torque specs, marking drive shaft position BEFORE removal, etc.) And you should likely also replace the carrier bearing and the related center bolt and washer. Good luck...