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Rear Axle Replacement


dmag23
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Here's an unusual question. Can the complete rear axle assembly from a 2004 Pathfinder be used to replace the rear axle assembly in a 90-95 Pathfinder? In other words, are the axle brackets for the upper/lower control arms, shock mounts, track bar, etc. located in the same position on the axle housing? I believe I heard somewhere that the axle housing used in the R-50 was 2 inches wider than the housing used in the WD-21. That's not a problem as long as all the axle housing brackets line up with the older Pathfinder undercarriage mounting points. Anyone know the answer to this?

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What are you attempting to accomplish by swapping in the R50 axle? I'll get some pictures of the brackets on mine.

 

Keep in mind that you will need to swap in your third member (or any WD21 third) if you wish to retain your ABS.

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Actually, it's an '87 Pathfinder so I don't have ABS. I'm restoring it and need a new rear end. The wheel flange on each axle shaft is bent (wheels wobble when turning) and the third member is shot. I called around to several Nissan dealerships and the shafts and third member units are no longer available. Wasn't surprised by that one. I asked the dealerships to get me the shafts and third to fit a 90-95 application (knowing the bolt pattern on the third is different) and got the same answer; no longer available. An estimate I got from one shop to repair what I have made me think it might be just as cost effective to buy a new rear end assembly. Except the only new axle assemblies available these days are for the 96-2004 Pathfinders. If the control arm brackets and spring mounting plates are in the same location and the overall width of the R50 axle housing is the same or slightly wider than a WD21 housing, then I'm in good shape. An alternative to new prices is to find a low mileage '04 unit from a yard. I've got a 1000 mile round trip to my hunting lease and want to know I'm going to get there and back without any issues. Everything else on the vehicle has been replaced so going in on a new rear end isn't a problem. I appreciate the feedback; this is an excellent website.

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OK. So you need a new rear axle, and figure that the 33-spline R50 rear end would better suit you than the 31-spline of the WD21. However, if you ever plan on modifying the truck and adding a locker, the WD axle will b your best bet, as it is compatible with the less expensive mechanical LockRight. The R50 axle will only accept the ARB air locker.

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Found some pic's of an R50. Looks like it's not going to work. I'll go back to trying to find a yard unit and rebuilding from there. Thanks for all the input.

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