swapping '88 rear onto '90?

[fishead]

So, just met a guy that has a rear end off a 1988 Pathfinder that he said he would give to me. I drive a 1990 Pathfinder SE-V6 4X4 with a burnt out LSD. Would this "new" 3rd member be compatible with my Pathfinder? Not sure I even know what I am talking about to be honest.

 

I don't know exactly what my gear ratio is, but the new one is 4.65. Does this mean that if I spin one tire once, the driveshaft spins 4.65 times? Gonna do some more searching on this. My pathfinder has 31" tires, and I am pretty sure it as stock with them.

 

Thanks for your help guys, I almost sold her 2 weeks ago because I counted up all the money I have poured in. Now I am getting excited about a locked rear end.

 

Chris.

[88pathoffroad]

Count the stud holes on both centersections. If they match, it should bolt in. Also, if your rear brakes are discs the new diff will have to be from a disc rear otherwise you'll have to take it all apart and remove the thrust block from the center of the diff. Disc rears have a spacer, drum rears don't, so drum axles won't fit into a disc centersection until you pull the block.