ok so i have been using the search for an hour now and cant find nething pertaining to a RB20DET swap in a 240sx with a j30 rear diff i dont know if a stock s13 or s14 drive shaft will work or not my old drive shaft is to short i used to have a ka24de tranny i finally found a rb20det tranny and now i needa know if my s13 driveshaft will work many people say a s14 drive shaft will but they all have a stock rear diff ........ any info on this problem will be greatly appreciated i am really lookin to avoid puncturing the rear seal to my transmission. that was one prob that arized while goin through all this in my head , and yes i did check the 240/180sx forums for the same questions ....once agian thanx for any help