Ok, here's the deal. First mistake bought from tiger... not Hmotors. Ended up having to do major wiring changes to the harness to get everything to work, which makes sense now that I found out the LS is a '91 not a '98 like I thought I bought. So I check the tranny code and its S4C which made me think sweet, possible LSD etc. Then I was checking gearing with my wheel size and noticed that either my speedo is whack or I had different gears. I entered the S80 ratios and they match what speeds I get on the clock. Long story short I think they ended up slapping a hydro tranny with the old JDM LS block and somewhere in the mix, the gearing was changed too. This sound plausible???