Since deciding to go with the LS swap I've been thinking about either going with the LS or GSR transmissions. Just a couple questions though.
like if I get a GSR or Type R will they fit with the LS engine without too much trouble? And also you guys wouldn't happen to know a website or some dealers that sell busted up/used/new transmissions? I did search I just seem to find sites that sell the parts to rebuild transmissions.

gsr and itr tranny will fit without any trouble at all.

www.hmotorsonline.com, get their number and call them.

recycler.com, ebay.com, honda-tech.com classifieds.

any b series hydro tranny will bolt up to your b18b.