can u use a 91 trans with a 92 engine?

yeah i found a 1992 ka24de cheap with only 38,000 miles on it so i am going to get it anyway i was wondering if u need to also have the transmission our can u usse the same one. i have a 91 240sx.

with no modification done to it

As long as your tranny is from a KA24DE not a KA24E then you'll be fine, if it's from a KA24E I have no idea if it'll work or not.

it'll work 91 and 92 both had the the double not the single..

yep. go ahead and use it.